How to fix this Build Path Error?

问题

This problem may the end of me. I have a red "!" over my project. I have learned this is a build path error. This is what comes up in the problems log.

 missing required Java project: 'appcompat_v7'          
 missing required Java project: 'appcompat_v7_2'    
 is missing required library: '\Copy of appcompat_v7\libs\android-support-v7-appcompat.jar
 is missing required Java project: 'appcompat_v7_3' 
 is missing required library: '\appcompat_v7\libs\android-support-v4.jar'   

I have tried cleaning, restoring, quickfix--> adding libraries, ect please help.

回答1:

Go to your project properties and remove appcompat library. Also since you have minSDK of 16 you dont need appcompat.

来源：https://stackoverflow.com/questions/24772764/how-to-fix-this-build-path-error