m_6631_ is Tier.getAttackDamageBonus, you can see the call in the Basic Weapons code here. I'm not sure why this is happening, the fg.deobf call in build.gradle should be deobfuscating the dependency from SRG to Official/Parchment names. Did you definitely have fg.deobf in place when you got this crash? Try refreshing the Gradle project in your IDE to make sure it's in sync with the build script. In IntelliJ IDEA, this can be done with the "Sync All Gradle Projects" button in the Gradle window.
If this doesn't help, you may want to ask in the #mod-dev-support-1․20․x channel on Discord as there are people there that don't read the forums.
By
Choonster ·