# Unity Build Failed - Duplicate Class

I'm here struggling for hours to build my game (android) and 'Execution failed for task : checkReleaseDuplicateClasses'

Duplicate class androidx.annotation.AnimatorRes found in modules androidx.annotation.annotation-1.0.0.jar (androidx.annotation.annotation-1.0.0.jar) and androidx.annotation.annotation-1.1.0.jar (androidx.annotation.annotation-1.1.0.jar)



... are just two examples of the 486 warnings I'm getting. Can anyone help a noob out? Thanks so much for your time!

• Worked when I deleted 2 files from Plugins/Android folder. Nov 2 '19 at 23:59
• If you've solved your problem, please post your solution as an Answer that can help others. Please be sure to include details of which files you had to delete, or the process that helped you identify that those files needed to be deleted. Nov 3 '19 at 0:33
• "[...] and the process that helped [...]". Because deleting random files may cause more harm than anything else. Nov 3 '19 at 2:18