Execution failed for task ':app:rocooJarBeforeDexDebug'.Method code too large!

[PennHan]

编译时BUILD FAILED， gradle的log如下： :app :rocooJarBeforeDexDebug FAILED

FAILURE: Build failed with an exception.

What went wrong: Execution failed for task ':app:rocooJarBeforeDexDebug'. > Method code too large!

但是没有提示哪个方法过大，要怎么解决呢。