I've posted my question already, but I still don't know what to do.

I have a mod finished (lets call it mod A), which I want to distribute via mavenCentral so other devs can use its API. Before I upload the jar I would like to test it locally with another mod (mod B). Thats why I have this in the build.gradle file of mod B:

dependencies {
    minecraft "net.minecraftforge:forge:${version_forge}"
	
	implementation fg.deobf(files('C:/Minecraft Modding/ElementalCombat/build/libs/elementalcombat-forge-1.16.5-1.1.1.jar'))
}

This will import the jar into the project succesfully. However when I try to run mod B mod A will run into a FieldNotFound exception in its init phase. The field from the exception has an obfuscated name, which it didn't had before building the jar. So my best guess is, that something went wrong when (de-)obfuscating the jar. But I don't know how I can fix this.

My repositories can be found here:
https://github.com/Tavi007/ElementalCombat (aka mod A)
https://github.com/Tavi007/ElementalCombat-Weaponry (aka mod B)

The line, that causes the exception:
https://github.com/Tavi007/ElementalCombat/blob/b562cba34d2bee7a647aa4d088372c917d67a3d4/src/main/java/Tavi007/ElementalCombat/init/EnchantmentList.java#L39

I really hope, someone can help me. This is the last issue, that I need to fix, before I can release my mod

I did not know that and I will try it. Thanks for the reply!