Sodium Crash: Class Does Not Implement Interface VertexBufferWriter

What it looks like in the log

java.lang.IllegalArgumentException: The class com.anthonyhilyard.iceberg.renderer.VertexCollector$1 does not implement interface VertexBufferWriter, w

How to fix it

1. Check the package name after `The class` in the crash report to identify the incompatible mod (for example, `com.anthonyhilyard.iceberg` is the Iceberg library mod).
2. Update Iceberg (or whichever mod is named in the class path) to the latest version available for your Minecraft release, as newer builds implement Sodium's `VertexBufferWriter` interface.
3. Ensure both Sodium and Indium (if using Sodium 0.5.x on Fabric/Quilt) are updated to matching versions for your Minecraft version.
4. If the offending mod has not been updated to support Sodium 0.5+, remove that mod and its dependents (for Iceberg, this includes mods like Legendary Tooltips, Prism, and Equipment Compare).

Check your own logDownload iceberg on 9Minecraft