Error Codes

Proposal for consistent error codes across the entire lbrynet API.

Code	Name
1xx	Daemon start Failures (non-recoverable)
100	Daemon does not start. (A philosophical error code, never actually presented.)
10x	101-109 TBD; covers various OS / runtime errors that prevent lbrynet from bootstrapping itself.
110	Cannot write configuration file. (When writing the default config fails on startup, such as due to permission issues.)
111	Cannot find provided configuration file. (Can't open the config file user provided via command line args.)
112	Failed to parse the configuration file. (Includes the syntax error / line number to help user fix it.)
120	Out of disk space.
130	Command does not exist.
131	Command is deprecated.
132	Invalid arguments for command.
2xx	Networking
201	Not internet connection.
202	Router does not support UPnP.
210	Failed connecting to a lbryumx server. (Should normally not need to be handled higher up as lbrynet will retry other servers.)
211	Failed connecting to all known lbryumx servers. (Will need to bubble up and require user to do something.)
212	lbryumx droppped our connection. (Maybe we were being bad?)
213	Disconnected from lbryumx server due to suspicious responses. (SPV failed to validate, etc)
214	Disconnected from lbryumx server due to unresponsiveness.
215	215-229 TBD lbryumx connectivity errors.
230	230-249 P2P / blob download errors.
250	250 - 299 TBD DHT errors.
3xx	Blockchain
300	Transaction rejected, unknown reason.
301	Transaction rejected, fees too low.
310	Not enough LBC to cover the transaction, even after all UTXOs reach 6 confirmations.
311	Not enough LBC to cover the transaction, will be enough after some more confirmations.
330	Channel signing key not found.
331	Channel signing key is out of date. (For example, channel was updated but you don't have the updated key.)
4xx	Blobs
400	Blob not found.