Auto-generated RobotLogger encountering "cannot be resolved or is not a field"

[zeroClearAmerican]

Describe the bug
After converting our 2024 code to 2025, adding annotation logging, and resolving all build errors, attempts to run the robot code result in an error on program startup, stemming from the auto-generated Epilogue logger classes.

The code can be built successfully using the WPILib: Build robot code command, and the error seems like it would occur during the build and not at runtime, so it's perplexing.

To Reproduce
Steps to reproduce the behavior:

1. Run the command "WPILib: Simulate Robot Code"
2. Note that the code builds without issue.
3. Select "Sim GUI"
4. Select "Continue" in the build failure notification.
5. Watch Sim GUI startup and immediately shutdown
6. Check Debug: Main terminal to see stack trace

• Link to code: https://github.com/FRCTeam31/Tchaikovsky_2025Revamp/tree/drivetrain_sim

Expected behavior
The robot code would be expected to start successfully and enter Disabled mode

Screenshots
Here is the stack trace of the error:

Error at frc.robot.RobotLogger.update(RobotLogger.java:29): Unhandled exception: java.lang.Error: Unresolved compilation problem: 
        containerLogger cannot be resolved or is not a field

        at frc.robot.RobotLogger.update(RobotLogger.java:29)
        at frc.robot.RobotLogger.update(RobotLogger.java:1)
        at edu.wpi.first.epilogue.logging.ClassSpecificLogger.tryUpdate(ClassSpecificLogger.java:64)
        at edu.wpi.first.epilogue.Epilogue.update(Epilogue.java:34)
        at edu.wpi.first.epilogue.Epilogue.lambda$0(Epilogue.java:55)
        at edu.wpi.first.wpilibj.TimedRobot.startCompetition(TimedRobot.java:146)
        at edu.wpi.first.wpilibj.RobotBase.runRobot(RobotBase.java:350)
        at edu.wpi.first.wpilibj.RobotBase.lambda$startRobot$0(RobotBase.java:418)
        at java.base/java.lang.Thread.run(Unknown Source)

And a screenshot of the source:

Desktop:

• OS: Windows 10
• OS Language: English
• Project Information: WPILib Information:
  Project Version: 2025.1.1-beta-1
  VS Code Version: 1.94.2
  WPILib Extension Version: 2025.1.1-beta-1
  C++ Extension Version: 1.22.9
  Java Extension Version: 1.36.2024092708
  Java Debug Extension Version: 0.58.2024090204
  Java Dependencies Extension Version 0.24.0
  Java Version: 17
  Java Location: C:\Users\Public\wpilib\2025\jdk
  Vendor Libraries:
  PathplannerLib (2025.0.0-beta-3.1)
  CTRE-Phoenix (v5) (5.34.0-beta-1)
  CTRE-Phoenix (v6) (25.0.0-beta-1)
  REVLib (2024.2.4)
  WPILib-New-Commands (1.0.0)

roboRIO (please complete the following information if applicable):
(simulation)

Additional context
n/a

[rzblue]

We are aware of this issue and are investigating more options to fix or work around this. See this comment for more info.

[zeroClearAmerican]

Thanks for the update. Running gradlew simulateJava in the project's root directory is successfully starting the simulation for me.

[rzblue]

Reopening until the issue is fixed in a release

[rzblue]

Unfortunately, it appears that this can still happen on v2025.1.1-beta-2

[rzblue]

We've identified a VSCode setting that appears to fix this in combination with the beta-2 fixes. Add the following to your project's .vscode/settings.json:

"java.import.gradle.annotationProcessing.enabled": false

The whole config should look something like this:

{
  "java.configuration.updateBuildConfiguration": "automatic",
  "java.server.launchMode": "Standard",
  "files.exclude": {
    "**/.git": true,
    "**/.svn": true,
    "**/.hg": true,
    "**/CVS": true,
    "**/.DS_Store": true,
    "bin/": true,
    "**/.classpath": true,
    "**/.project": true,
    "**/.settings": true,
    "**/.factorypath": true,
    "**/*~": true
  },
  "java.test.config": [
    {
      "name": "WPIlibUnitTests",
      "workingDirectory": "${workspaceFolder}/build/jni/release",
      "vmargs": [ "-Djava.library.path=${workspaceFolder}/build/jni/release" ],
      "env": {
        "LD_LIBRARY_PATH": "${workspaceFolder}/build/jni/release" ,
        "DYLD_LIBRARY_PATH": "${workspaceFolder}/build/jni/release"
      }
    },
  ],
  "java.test.defaultConfig": "WPIlibUnitTests",
  "java.import.gradle.annotationProcessing.enabled": false
}