Gradle Error terraria mod

I have many Errors in my mod that's based on the indie game terraria. 

All of them are related to a model I imported from Blockbench.

Most of them are 'cannot find symbol' errors, but some other ones are 2 instances of "type argument Entity is not within bounds of type-variable T", 2 instances of "type argument ModelDemonEye is not within bounds of type-variable M ", 2 instances of "invalid method reference ", and one instance of "constructor ModelData in class ModelData cannot be applied to given types". I have not coded or messed with any of the code that is showing an error.

these are my errors: Pastebin.com