Upgrading to 1.3.12 breaks my build.

[navandres]

I started to upgrade some libraries in a project and found out that upgrading logback from 1.3.11 to 1.3.12 starts breacking my build.
The error is not useful really:

[error]
[error] last tree to typer: Ident(LoggerContext)
[error] tree position: line 159 of /.../.../MyService.scala
[error] symbol:
[error] symbol definition: (a NoSymbol)
[error] symbol package:
[error] symbol owners:
[error] call site: object MyService in package service
[error]
[error] == Source file context for tree position ==
[error]
[error] 156
[error] 157 case Commands.fullStart =>
[error] 158 val system = ActorSystem("MyProject", svcConfig)
[error] 159 implicit val lc = LoggerFactory.getILoggerFactory.asInstanceOf[LoggerContext]
[error] 160 /*
[error] 161 implicit val lc = LoggerFactory.getILoggerFactory match {
[error] 162 case context: LoggerContext => context
[error] ## Exception when compiling 36 sources to /.../.../MyProject/target/scala-2.12/classes
[error] scala.reflect.internal.FatalError:
[error] bad constant pool index: 0 at pos: 13078
[error] while compiling: /.../.../MyService.scala
[error] during phase: typer
[error] library version: version 2.12.11
[error] compiler version: version 2.12.11

Any suggestions on what might be wrong and how to fix the problem??

Thanks!!

[hazendaz]

Please provide more information and also check logback news as that version is old and believe not supported. Sent from my Verizon, Samsung Galaxy smartphone Get Outlook for Android<https://aka.ms/AAb9ysg>

…

________________________________ From: Andy Navarro ***@***.***> Sent: Monday, April 28, 2025 9:59:13 AM To: qos-ch/logback ***@***.***> Cc: Subscribed ***@***.***> Subject: [qos-ch/logback] Upgrading to 1.3.12 breaks my build. (Discussion #936) I started to upgrade some libraries in a project and found out that upgrading logback from 1.3.11 to 1.3.12 starts breacking my build. — Reply to this email directly, view it on GitHub<#936>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AAHODI2LHUKPRMBEE4MU4ST23YX3DAVCNFSM6AAAAAB4AP7KMCVHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZYGI2TKNZVGE>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[navandres]

I updated the post. Sorry about that.

[ceki]

@navandres This issue does not seem to be logback related as there were no breaking changes between version 1.3.11 and version 1.3.12. In any case, version 1.5 is a drop in replacement for both the 1.3 and 1.4 series which are no longer actively developed. There is no reason not to upgrade to version 1.5.