Hi, i'm currently trying to make use of your mod as (new) mod dev...
So, i did a clean install of forge with the IntelliJ ForgeGradle plugin.

• Added "Kiwi-1.15.2-2.8.5.jar" to "/src/libs/",
  and added "compile files("src/libs/Kiwi-1.15.2-2.8.5.jar")" (in the dependencies field of build.gradle)

• The game compiles just fine but won't start.

• "Kiwi (kiwi) encountered an error during the create_registries event phase
  net.minecraft.util.ResourceLocation.func_110624_b()Ljava/lang/String;"

• The mod is currently empty, no added classes, just a clean install and your jar :)

debug.log
latest.log

hello, you need to use the deobf. version, or use CurseMaven