How to Read BoxLib's Mod Logger Output When Troubleshooting

BoxLib provides a mod logger that mods use to write structured messages to the game log. When something misbehaves, the log is the fastest place to see what a BoxLib-based mod is actually doing.

Where the Log Lives

Minecraft writes its log to the logs folder in your game directory. The most recent session is in latest.log, and older sessions are archived. BoxLib's logger writes into this same stream, tagged with the mod that produced the message.

Reading the Output

1. Open latest.log in any text editor.

2. Search for the name of the mod you are troubleshooting. BoxLib's logger prefixes entries so you can filter quickly.

3. Look at the severity: informational lines describe normal operation, warnings flag recoverable problems, and errors indicate something failed.

4. Read the surrounding lines, not just the error. BoxLib utilities often log context before the failure, such as which config value or render pass was involved.

What to Do With It

If you see a repeating error tied to one mod, that mod is the likely culprit. Disable it and check whether the problem clears. When reporting an issue, include the relevant log lines; they tell the developer exactly which BoxLib utility was called and with what input.

Tips

• Do not edit the log; it is overwritten each launch.
• A single error early in startup can cascade into many later warnings.