Errors occurred during the build

Errors occurred during the build.

Errors running builder 'Android Package Builder' on project 'helloworld'.→（你的项目名）
com/android/dx/command/dexer/Main : Unsupported major.minor version 52.0
如下图所示



本人遇到过两次，按网上的都试过了，没用。
最后重新安装Android的sdk才搞定的。希望对读者有用。