[SOLVED] Bad class error, blames a block object even though the error is clearly a Gradle thing

 So i always have this error when compiling my mod:

https://www.toptal.com/developers/hastebin/ikilomekeq.kotlin

 The only thing in this mod is a block. Is the animated texture to blame? I tried everything: clearing Gradle caches in both modes, regenerating (the bandaid thing), rerunning :eclipse, all that, even deleting the file it mentions, but nothing worked. What do i do?!