Corrupted files

Missing or Corrupted ASM Tree Library (org/objectweb/asm/tree/ClassNode)

What it looks like in the log

java.lang.NoClassDefFoundError: org/objectweb/asm/tree/ClassNode

How to fix it

  1. In your launcher settings (such as HMCL, PCL, or Prism Launcher), switch the download source from third-party mirrors to the Official download source.
  2. Clear your launcher's download cache in its settings so it does not restore the corrupted JAR from local cache.
  3. Navigate to your game directory and delete the .minecraft/libraries/org/ow2/asm/ folder (or use your launcher's game repair option to delete all library files).
  4. Update your launcher to the latest version so it verifies library checksums, then launch the profile again or reinstall Fabric/Forge to re-download a clean copy of asm-tree.
LoadersFabric, Quilt, Forge, Neoforge
SeverityStops the game
CategoryCorrupted files

Check your own logDownload tree on 9Minecraft

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