blockscout backend manual deploy attempt gives warnings.

[dilipgunawardena]

Hi,

I'm following your "Manual Deployment" guide
https://docs.blockscout.com/setup/deployment/manual-deployment-guide
to try and build on AlmaLinux 9, but it gives a whole slew of warnings:

Which must I fix, and which can I safely ignore?

mix do deps.get, local.rebar --force, deps.compile

statistex 1.0.0
sweet_xml 0.7.5
telemetry 1.3.0
tesla 1.14.1
timex 3.7.11
typed_ecto_schema 0.4.1
tzdata 1.1.1
ueberauth 0.10.8
ueberauth_auth0 2.1.0
unicode_util_compat 0.7.0
unsafe 1.0.2
varint 1.5.1
vix 0.33.0
wallaby 0.30.10
web_driver_client 0.2.0
websockex 0.4.3

• creating .asdf/installs/elixir/1.17.3-otp-27/.mix/elixir/1-17/rebar3
  ==> file_system
  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  71 │ '-e', 'modify', '-e', 'close_write', '-e', 'moved_to', '-e', 'moved_from',
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:71:11

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  71 │ '-e', 'modify', '-e', 'close_write', '-e', 'moved_to', '-e', 'moved_from',
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:71:17

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  71 │ '-e', 'modify', '-e', 'close_write', '-e', 'moved_to', '-e', 'moved_from',
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:71:27

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  71 │ '-e', 'modify', '-e', 'close_write', '-e', 'moved_to', '-e', 'moved_from',
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:71:33

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  71 │ '-e', 'modify', '-e', 'close_write', '-e', 'moved_to', '-e', 'moved_from',
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:71:48

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  71 │ '-e', 'modify', '-e', 'close_write', '-e', 'moved_to', '-e', 'moved_from',
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:71:54

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  71 │ '-e', 'modify', '-e', 'close_write', '-e', 'moved_to', '-e', 'moved_from',
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:71:66

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  71 │ '-e', 'modify', '-e', 'close_write', '-e', 'moved_to', '-e', 'moved_from',
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:71:72

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:11

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:17

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:27

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:33

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:43

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:49

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:59

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:79

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:90

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  72 │ '-e', 'create', '-e', 'delete', '-e', 'attrib', '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:72:96

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  84 │ parse_options(t, result -- ['-r'])
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:84:33

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
  │
  104 │ bash_args = ['-c', '#{executable_path()} "$0" "$@" & PID=$!; read a; kill -KILL $PID']
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:104:22

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
  │
  104 │ bash_args = ['-c', '#{executable_path()} "$0" "$@" & PID=$!; read a; kill -KILL $PID']
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:104:28

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
  │
  109 │ bash_args ++ ['--'] ++ port_args
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:109:29

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
  │
  116 │ {:spawn_executable, '/bin/sh'},
  │ ~
  │
  └─ lib/file_system/backends/fs_inotify.ex:116:31

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  94 │ args = ['-F' | dirs |> Enum.map(&Path.absname/1) |> Enum.map(&to_charlist/1)]
  │ ~
  │
  └─ lib/file_system/backends/fs_mac.ex:94:17

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
  │
  103 │ ['--latency=#{latency / 1}' | result]
  │ ~
  │
  └─ lib/file_system/backends/fs_mac.ex:103:10

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
  │
  111 │ parse_options(t, ['--no-defer' | result])
  │ ~
  │
  └─ lib/file_system/backends/fs_mac.ex:111:23

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
  │
  121 │ parse_options(t, ['--with-root' | result])
  │ ~
  │
  └─ lib/file_system/backends/fs_mac.ex:121:23

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  83 │ '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_windows.ex:83:11

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  83 │ '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_windows.ex:83:31

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  83 │ '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_windows.ex:83:42

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  83 │ '--format', format, '--quiet', '-m', '-r'
  │ ~
  │
  └─ lib/file_system/backends/fs_windows.ex:83:48

  warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
  │
  95 │ parse_options(t, result -- ['-r'])
  │ ~
  │
  └─ lib/file_system/backends/fs_windows.ex:95:33

===> Analyzing applications...
===> Compiling poolboy
===> Analyzing applications...
===> Compiling unicode_util_compat
===> Analyzing applications...
===> Compiling idna
===> Analyzing applications...
===> Compiling telemetry
==> poison
warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
│
127 │ for {char, seq} <- Enum.zip('"\\n\t\r\f\b', '"\ntrfb') do
│ ~
│
└─ lib/poison/encoder.ex:127:31

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

127 │ for {char, seq} <- Enum.zip('"\\n\t\r\f\b', '"\ntrfb') do
│ ~
│
└─ lib/poison/encoder.ex:127:48

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

174 │ when char <= 0x1F or char in '"\' do
│ ~
│
└─ lib/poison/encoder.ex:174:37

 warning: use Bitwise is deprecated. import Bitwise instead
 │

117 │ use Bitwise
│ ~~~~~~~~~~~
│
└─ lib/poison/encoder.ex:117: Poison.Encoder.BitString (module)

warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│

94 │ when char in '-0123456789' do
│ ~
│
└─ lib/poison/parser.ex:94:21

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

189 │ when char in '123456789' do
│ ~
│
└─ lib/poison/parser.ex:189:21

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

205 │ defp number_exp(<> <> rest, frac, pos, acc) when e in 'eE' do
│ ~
│
└─ lib/poison/parser.ex:205:60

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

238 │ when char in '0123456789' do
│ ~
│
└─ lib/poison/parser.ex:238:21

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

246 │ defp number_digits_count(<> <> rest, acc) when char in '0123456789' do
│ ~
│
└─ lib/poison/parser.ex:246:64

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

270 │ for {seq, char} <- Enum.zip('"\ntr/fb', '"\\n\t\r/\f\b') do
│ ~
│
└─ lib/poison/parser.ex:270:31

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

270 │ for {seq, char} <- Enum.zip('"\ntr/fb', '"\\n\t\r/\f\b') do
│ ~
│
└─ lib/poison/parser.ex:270:44

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

277 │ when a1 in 'dD' and a2 in 'dD' and b1 in '89abAB' and
│ ~
│
└─ lib/poison/parser.ex:277:24

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

277 │ when a1 in 'dD' and a2 in 'dD' and b1 in '89abAB' and
│ ~
│
└─ lib/poison/parser.ex:277:39

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

277 │ when a1 in 'dD' and a2 in 'dD' and b1 in '89abAB' and
│ ~
│
└─ lib/poison/parser.ex:277:54

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

334 │ defp skip_whitespace(<> <> rest, pos) when char in '\s\n\t\r' do
│ ~
│
└─ lib/poison/parser.ex:334:60

warning: Application.get_env/2 is discouraged in the module body, use Application.compile_env/3 instead
│

42 │ if Application.get_env(:poison, :native) do
│ ~
│
└─ lib/poison/parser.ex:42:18: Poison.Parser (module)

warning: use Bitwise is deprecated. import Bitwise instead
│

46 │ use Bitwise
│ ~~~~~~~~~~~
│
└─ lib/poison/parser.ex:46: Poison.Parser (module)

===> Analyzing applications...
===> Compiling quantile_estimator
==> mimetype_parser
warning: in order to compile .yrl files, you must add "compilers: [:yecc] ++ Mix.compilers()" to the "def project" section of mimetype_parser's mix.exs
warning: in order to compile .xrl files, you must add "compilers: [:leex] ++ Mix.compilers()" to the "def project" section of mimetype_parser's mix.exs
===> Analyzing applications...
===> Compiling accept
warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│
21 │ defp elixirc_paths(:test), do: ['lib', 'test/support']
│ ~
│
└─ /home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/deps/websockex/mix.exs:21:35

warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│

21 │ defp elixirc_paths(:test), do: ['lib', 'test/support']
│ ~
│
└─ /home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/deps/websockex/mix.exs:21:42

warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│

22 │ defp elixirc_paths(_), do: ['lib']
│ ~
│
└─ /home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/deps/websockex/mix.exs:22:31

==> websockex
warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
│
503 │ {:header, 'Status for WebSockex process #{inspect(self())}'},
│ ~
│
└─ lib/websockex.ex:503:17

 warning: :sys.get_debug/3 is deprecated. Incorrectly documented and only for internal use. Can often be replaced with sys:get_log/1
 │

499 │ log = :sys.get_debug(:log, debug, [])
│ ~
│
└─ (websockex 0.4.3) lib/websockex.ex:499:16: WebSockex.format_status/2

  warning: System.stacktrace/0 is deprecated. Use __STACKTRACE__ instead
  │

1116 │ stacktrace = System.stacktrace()
│ ~
│
└─ (websockex 0.4.3) lib/websockex.ex:1116:27: WebSockex.try_callback/3

 warning: ^^^ is deprecated. It is typically used as xor but it has the wrong precedence, use Bitwise.bxor/2 instead
 │

394 │ masked = part ^^^ key
│ ~
│
└─ lib/websockex/frame.ex:394:21

 warning: ^^^ is deprecated. It is typically used as xor but it has the wrong precedence, use Bitwise.bxor/2 instead
 │

400 │ masked = part ^^^ key
│ ~
│
└─ lib/websockex/frame.ex:400:19

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

167 │ :error_logger.format('~p: ignoring bad debug options pn', [name, opts])
│ ~
│
└─ lib/websockex/utils.ex:167:34

===> Analyzing applications...
===> Compiling mimerl
===> Analyzing applications...
===> Compiling sleeplocks
===> Analyzing applications...
===> Compiling ranch
make: Entering directory '/home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/deps/prometheus_process_collector/c_src'
make: '/home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/deps/prometheus_process_collector/c_src/../priv/prometheus_process_collector.so' is up to date.
make: Leaving directory '/home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/deps/prometheus_process_collector/c_src'
===> Analyzing applications...
===> Compiling prometheus_process_collector
src/qrcode_erl_png.erl:44:2: warning: export_all flag enabled - all functions will be exported
src/qrcode_erl_png.erl:111:7: warning: crypto:hmac/3 is removed; use crypto:mac/4 instead
src/bits.erl:18:2: warning: export_all flag enabled - all functions will be exported
===> Analyzing applications...
===> Compiling certifi
==> absinthe_relay
warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
│
590 │ Logger.warn("Ignoring additional #{key} provided on edge (overriding is not allowed)")
│ ~
│
└─ (absinthe_relay 1.5.2) lib/absinthe/relay/connection.ex:590:16: Absinthe.Relay.Connection.build_edge/2

 warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
 │

267 │ Logger.warn(
│ ~
│
└─ (absinthe_relay 1.5.2) lib/absinthe/relay/node.ex:267:16: Absinthe.Relay.Node.to_global_id/3

 warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
 │

376 │ Logger.warn(@missing_internal_id_error <> " (type #{type_name})")
│ ~
│
└─ (absinthe_relay 1.5.2) lib/absinthe/relay/node.ex:376:12: Absinthe.Relay.Node.report_fetch_id_error/2

===> Analyzing applications...
===> Compiling parse_trans
src/erlex_parser.yrl:none: warning: conflicts: 27 shift/reduce, 0 reduce/reduce
==> spandex
warning: Application.get_env/2 is discouraged in the module body, use Application.compile_env/3 instead
│
27 │ @tracer Application.get_env(:spandex, :decorators)[:tracer]
│ ~
│
└─ lib/decorators.ex:27:25: Spandex.Decorators (module)

===> Analyzing applications...
===> Compiling metrics
===> Analyzing applications...
===> Compiling hackney
==> bamboo
warning: Plug.Cowboy.http/3 is undefined (module Plug.Cowboy is not available or is yet to be defined)
│
11 │ Plug.Cowboy.http(Bamboo.SentEmailViewerPlug, [], port: 4003)
│ ~
│
└─ (bamboo 2.4.0) lib/mix/start_sent_email_viewer_task.ex:11:17: Mix.Tasks.Bamboo.StartSentEmailViewer.run/1

==> timex
warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│
7 │ @Numeric '.0123456789'
│ ~
│
└─ lib/parse/duration/parsers/iso8601.ex:7:12

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

130 │ defp parse_component(<<c::utf8>>, {type, acc}) when c in 'WYMDHS' do
│ ~
│
└─ lib/parse/duration/parsers/iso8601.ex:130:60

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

149 │ defp parse_component(<<c::utf8, rest::binary>>, {type, acc}) when c in 'WYMDHS' do
│ ~
│
└─ lib/parse/duration/parsers/iso8601.ex:149:74

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

153 │ @local_tz_key 'SYSTEM\CurrentControlSet\Control\TimeZoneInformation'
│ ~
│
└─ lib/timezone/local.ex:153:17

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

154 │ @sys_tz_key 'SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones'
│ ~
│
└─ lib/timezone/local.ex:154:15

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

155 │ @tz_key_name 'TimeZoneKeyName'
│ ~
│
└─ lib/timezone/local.ex:155:16

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

162 │ :ok = :win32reg.change_key(handle, '\local_machine\#{@local_tz_key}')
│ ~
│
└─ lib/timezone/local.ex:162:40

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

180 │ localized = List.keyfind(values, 'StandardName', 0)
│ ~
│
└─ lib/timezone/local.ex:180:40

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

190 │ case List.keyfind(values, 'Std', 0) do
│ ~
│
└─ lib/timezone/local.ex:190:37

12:56:04.967 [info] EVISION_PREFER_PRECOMPILED: true; try to download and use the precompiled library.

12:56:04.967 [info] Current target x86_64-linux-gnu has precompiled binaries.

12:56:04.967 [info] Current host NIF version is 2.17, will use precompiled binaries with NIF version 2.16.

12:56:04.990 [info] Copying priv directory: /home/pressblockchain/.cache/evision-nif_2.16-x86_64-linux-gnu-contrib-0.2.12/priv => /home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/_build/dev/lib/evision/priv

12:56:05.053 [info] Copying generated Elixir binding files: /home/pressblockchain/.cache/evision-nif_2.16-x86_64-linux-gnu-contrib-0.2.12/elixir_generated => /home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/deps/evision/lib/generated
==> bcrypt_elixir
mkdir -p "/home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/_build/dev/lib/bcrypt_elixir/priv"
cc -g -O3 -Wall -Wno-format-truncation -I"/home/pressblockchain/.asdf/installs/erlang/27.1/erts-15.1/include" -Ic_src -fPIC -shared c_src/bcrypt_nif.c c_src/blowfish.c -o "/home/pressblockchain/explorer.pressblockchain.io/blockscout-backend/_build/dev/lib/bcrypt_elixir/priv/bcrypt_nif.so"
==> utils
Generated utils app
===> Analyzing applications...
===> Compiling cowlib
===> Analyzing applications...
===> Compiling cowboy
===> Analyzing applications...
===> Compiling cowboy_telemetry
==> phoenix
warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
│
258 │ notBefore: {:utcTime, '#{not_before}000000Z'},
│ ~
│
└─ lib/mix/tasks/phx.gen.cert.ex:258:33

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

259 │ notAfter: {:utcTime, '#{not_after}000000Z'}
│ ~
│
└─ lib/mix/tasks/phx.gen.cert.ex:259:32

  warning: missing parentheses for expression following "do:" keyword. Parentheses are required to solve ambiguity inside keywords.

  This error happens when you have function calls without parentheses inside keywords. For example:

      function(arg, one: nested_call a, b, c)
      function(arg, one: if expr, do: :this, else: :that)

  In the examples above, we don't know if the arguments "b" and "c" apply to the function "function" or "nested_call". Or if the keywords "do" and "else" apply to the function "function" or "if". Youcan solve this by explicitly adding parentheses:

      function(arg, one: if(expr, do: :this, else: :that))
      function(arg, one: nested_call(a, b, c))

  Ambiguity found at:
  │

1002 │ defp get_disposition_type(other), do: raise ArgumentError, "expected :disposition to be :attachment or :inline, got: #{inspect(other)}"
│ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
│
└─ lib/phoenix/controller.ex:1002

  warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
  │

1013 │ Logger.warn "send_download/3 has been invoked during an AJAX request. " <>
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/controller.ex:1013:14: Phoenix.Controller.warn_if_ajax/1

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
│

71 │ Logger.warn("no configuration found for otp_app #{inspect(otp_app)} and module #{inspect(mod)}")
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/endpoint/supervisor.ex:71:20: Phoenix.Endpoint.Supervisor.init/1

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
│

95 │ Logger.warn(":instrumenters configuration for #{inspect(mod)} is deprecated and has no effect")
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/endpoint/supervisor.ex:95:14: Phoenix.Endpoint.Supervisor.init/1

 warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
 │

116 │ Logger.warn """
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/endpoint/supervisor.ex:116:14: Phoenix.Endpoint.Supervisor.pubsub_children/2

 warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
 │

166 │ Logger.warn "Phoenix.Endpoint.CowboyHandler is deprecated, please use Phoenix.Endpoint.CowboyAdapter instead"
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/endpoint/supervisor.ex:166:16: Phoenix.Endpoint.Supervisor.user_adapter/2

 warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
 │

170 │ Logger.warn "The :handler option in #{inspect endpoint} is deprecated, please use :adapter instead"
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/endpoint/supervisor.ex:170:16: Phoenix.Endpoint.Supervisor.user_adapter/2

 warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
 │

346 │ Logger.warn("url: [host: ...] configuration value #{inspect(host)} for #{inspect(endpoint)} is invalid")
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/endpoint/supervisor.ex:346:14: Phoenix.Endpoint.Supervisor.build_url/2

warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│

8 │ @anno (if :erlang.system_info(:otp_release) >= '19' do
│ ~
│
└─ lib/phoenix/router/helpers.ex:8:50

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

178 │ @anno (if :erlang.system_info(:otp_release) >= '19' do
│ ~
│
└─ lib/phoenix/view.ex:178:50

 warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
 │

691 │ Logger.warn fn -> "Ignoring unmatched topic "#{topic}" in #{inspect(handler)}" end
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/socket.ex:691:12: Phoenix.Socket.encode_ignore/2

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
│

55 │ Logger.warn(
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/code_reloader/server.ex:55:20: Phoenix.CodeReloader.Server.handle_call/3

warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
│

82 │ Logger.warn "Phoenix.Endpoint.CowboyAdapter is deprecated and it will be removed in next versions. " <>
│ ~
│
└─ (phoenix 1.5.14) lib/phoenix/endpoint/cowboy_adapter.ex:82:12: Phoenix.Endpoint.CowboyAdapter.child_specs/2

warning: missing parentheses for expression following "do:" keyword. Parentheses are required to solve ambiguity inside keywords.

This error happens when you have function calls without parentheses inside keywords. For example:

    function(arg, one: nested_call a, b, c)
    function(arg, one: if expr, do: :this, else: :that)

In the examples above, we don't know if the arguments "b" and "c" apply to the function "function" or "nested_call". Or if the keywords "do" and "else" apply to the function "function" or "if". You can solve this by explicitly adding parentheses:

    function(arg, one: if(expr, do: :this, else: :that))
    function(arg, one: nested_call(a, b, c))

Ambiguity found at:
│

71 │ unless actions -- supported_actions == [], do: raise ArgumentError, """
│ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
│
└─ lib/phoenix/router/resource.ex:71

 warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use "" instead
 │

411 │ @anno (if :erlang.system_info(:otp_release) >= '19' do
│ ~
│
└─ lib/phoenix/router.ex:411:50

==> ex_brotli
warning: @behaviour Phoenix.Digester.Compressor does not exist (in module ExBrotli.DigesterCompressor)
│
2 │ defmodule ExBrotli.DigesterCompressor do
│ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
│
└─ lib/ex_brotli/digester_compressor.ex:2: ExBrotli.DigesterCompressor (module)

==> ethereum_jsonrpc
Generated ethereum_jsonrpc app
==> phoenix_live_reload
warning: Logger.warn/1 is deprecated. Use Logger.warning/2 instead
│
32 │ Logger.warn("""
│ ~
│
└─ (phoenix_live_reload 1.3.3) lib/phoenix_live_reload/application.ex:32:16: Phoenix.LiveReloader.Application.start_link/0

==> phoenix_live_view
warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│
3 │ @space_chars '\s\t\f'
│ ~
│
└─ lib/phoenix_live_view/html_tokenizer.ex:3:16

warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│

4 │ @quote_chars '"''
│ ~
│
└─ lib/phoenix_live_view/html_tokenizer.ex:4:16

warning: single-quoted strings represent charlists. Use ~c"" if you indeed want a charlist or use"" instead
│

5 │ @stop_chars '>/=\r\n' ++ @quote_chars ++ @space_chars
│ ~
│
└─ lib/phoenix_live_view/html_tokenizer.ex:5:15

  warning: Plug.Conn.Query.decode_pair/2 is deprecated. Use decode_init/0, decode_each/2, and decode_done/2 instead
  │

1089 │ Plug.Conn.Query.decode_pair({name, DOM.attribute(selected, "value")}, acc)
│ ~
│
└─ (phoenix_live_view 0.17.7) lib/phoenix_live_view/test/client_proxy.ex:1089:23: Phoenix.LiveViewTest.ClientProxy.form_defaults/3

  warning: Plug.Conn.Query.decode_pair/2 is deprecated. Use decode_init/0, decode_each/2, and decode_done/2 instead
  │

1094 │ Plug.Conn.Query.decode_pair({name, String.replace_prefix(value, "\n", "")}, acc)
│ ~
│
└─ (phoenix_live_view 0.17.7) lib/phoenix_live_view/test/client_proxy.ex:1094:21: Phoenix.LiveViewTest.ClientProxy.form_defaults/3

  warning: Plug.Conn.Query.decode_pair/2 is deprecated. Use decode_init/0, decode_each/2, and decode_done/2 instead
  │

1104 │ Plug.Conn.Query.decode_pair({name, value}, acc)
│ ~
│
└─ (phoenix_live_view 0.17.7) lib/phoenix_live_view/test/client_proxy.ex:1104:27: Phoenix.LiveViewTest.ClientProxy.form_defaults/3

  warning: Plug.Conn.Query.decode_pair/2 is deprecated. Use decode_init/0, decode_each/2, and decode_done/2 instead
  │

1113 │ Plug.Conn.Query.decode_pair({name, value}, acc)
│ ~
│
└─ (phoenix_live_view 0.17.7) lib/phoenix_live_view/test/client_proxy.ex:1113:25: Phoenix.LiveViewTest.ClientProxy.form_defaults/3

==> spandex_phoenix
warning: Application.get_env/2 is discouraged in the module body, use Application.compile_env/3 instead
│
8 │ tracer: Application.get_env(:spandex_phoenix, :tracer)
│ ~
│
└─ lib/spandex_phoenix/plug/add_context.ex:8:25: SpandexPhoenix.Plug.AddContext (module)

warning: Application.get_env/2 is discouraged in the module body, use Application.compile_env/3 instead
│

7 │ tracer: Application.get_env(:spandex_phoenix, :tracer)
│ ~
│
└─ lib/spandex_phoenix/plug/finish_trace.ex:7:25: SpandexPhoenix.Plug.FinishTrace (module)

warning: Application.get_env/2 is discouraged in the module body, use Application.compile_env/3 instead
│

11 │ tracer: Application.get_env(:spandex_phoenix, :tracer)
│ ~
│
└─ lib/spandex_phoenix/plug/start_trace.ex:11:25: SpandexPhoenix.Plug.StartTrace (module)

==> que
warning: Application.get_env/3 is discouraged in the module body, use Application.compile_env/3 instead
│
8 │ @min_level Application.get_env(:que, :log_level, :low)
│ ~
│
└─ lib/que/helpers.ex:8:26: Que.Helpers (module)

warning: Supervisor.Spec.worker/2 is deprecated. Use the new child specifications outlined in theSupervisor module instead
│

60 │ worker(Que.Server, [])
│ ~
│
└─ (que 0.10.1) lib/que/server_supervisor.ex:60:7: Que.ServerSupervisor.init/1

warning: Supervisor.Spec.supervise/2 is deprecated. Use the new child specifications outlined in the Supervisor module instead
│

63 │ supervise(children, strategy: :simple_one_for_one)
│ ~
│
└─ (que 0.10.1) lib/que/server_supervisor.ex:63:5: Que.ServerSupervisor.init/1

warning: Supervisor.Spec.supervisor/2 is deprecated. Use the new child specifications outlined inthe Supervisor module instead
│

31 │ supervisor(Task.Supervisor, [[name: Que.TaskSupervisor]]),
│ ~
│
└─ (que 0.10.1) lib/que/supervisor.ex:31:7: Que.Supervisor.init/1

warning: Supervisor.Spec.supervisor/2 is deprecated. Use the new child specifications outlined inthe Supervisor module instead
│

32 │ supervisor(Que.ServerSupervisor, [])
│ ~
│
└─ (que 0.10.1) lib/que/supervisor.ex:32:7: Que.Supervisor.init/1

warning: Supervisor.Spec.supervise/2 is deprecated. Use the new child specifications outlined in the Supervisor module instead
│

35 │ supervise(children, strategy: :one_for_one)
│ ~
│
└─ (que 0.10.1) lib/que/supervisor.ex:35:5: Que.Supervisor.init/1

==> explorer
Generated explorer app
==> indexer
Compiling 24 files (.ex)
Generated indexer app
==> nft_media_handler
Generated nft_media_handler app
==> block_scout_web
Compiling 281 files (.ex)

12:56:08.778 [warning] Failed to lookup telemetry handlers. Ensure the telemetry application has beenstarted.

12:56:09.477 [warning] Failed to lookup telemetry handlers. Ensure the telemetry application has beenstarted.
Generated block_scout_web app

[ekawibisono]

hello @dilipgunawardena this no problem bro, your installation process is complete and running smoothly, for further communication please go to discord blockscout. https://discord.gg/blockscout

[dilipgunawardena]

Hi ekawibisono,

Thank you very much for your message.

No, this particular warning indicates serious trouble:

blockscout-backend]$ mix compile warning: Jason.decode!/1 is undefined (module Jason is not available or is yet to be defined)
│
251 │ |> Jason.decode!()
│ ~~~~~~~~~~~~~~~~~~
│
└─ config/config_helper.exs:251: ConfigHelper.parse_json_env_var/2

 warning: Jason.decode/1 is undefined (module Jason is not available or is yet to be defined)
 │

260 │ |> Jason.decode() do
│ ~~~~~~~~~~~~~~~~~~~~
│
└─ config/config_helper.exs:260: ConfigHelper.parse_json_with_atom_keys_env_var/2

warning: redefining module ConfigHelper (current version defined in memory)
│

1 │ defmodule ConfigHelper do
│ ~~~~~~~~~~~~~~~~~~~~~~~~~
│
└─ config/config_helper.exs:1: ConfigHelper (module)

 warning: Jason.decode!/1 is undefined (module Jason is not available or is yet to be defined)
 │

251 │ |> Jason.decode!()
│ ~~~~~~~~~~~~~~~~~~
│
└─ config/config_helper.exs:251: ConfigHelper.parse_json_env_var/2

 warning: Jason.decode/1 is undefined (module Jason is not available or is yet to be defined)
 │

260 │ |> Jason.decode() do
│ ~~~~~~~~~~~~~~~~~~~~
│
└─ config/config_helper.exs:260: ConfigHelper.parse_json_with_atom_keys_env_var/2

==> utils
Generated utils app
==> ethereum_jsonrpc
Generated ethereum_jsonrpc app
==> explorer
Generated explorer app
==> indexer
Generated indexer app
==> block_scout_web
Generated block_scout_web app
==> nft_media_handler
Generated nft_media_handler app

So, the "Jason.decode!/1 is undefined" warning indicates that even though my JSON-helper is wired into config/config_helper.exs, Mix hasn't actually pulled in the Jason library (nor has it compiled my helper module) before trying to use it!!!

And, sure enough, it gives these errors:

sudo yum install -y postgresql-server postgresql-contrib
sudo postgresql-setup --initdb
sudo systemctl enable postgresql
sudo systemctl start postgresql

Complete!

• Initializing database in '/var/lib/pgsql/data'
• Initialized, logs are in /var/lib/pgsql/initdb_postgresql.log
  Created symlink /etc/systemd/system/multi-user.target.wants/postgresql.service → /usr/lib/systemd/system/postgresql.service.
  Job for postgresql.service failed because the control process exited with error code.
  See "systemctl status postgresql.service" and "journalctl -xeu postgresql.service" for details.

[ekawibisono]

@dilipgunawardena If Any Error Please Send a logs error