Error:java: Compilation failed: internal java comp

解決方式：

step1

File->Project Structure -> project 菜單下，project SDK更改成1.8，而後project language level 更改成sdk default

這時候須要檢查一下File->Project Structure -> Modules下模塊的language level是否更改，未更改的話，點擊下拉菜單更改一下

step2

File-setting->Bulid,Excution,Deployment->compiler->java Compiler中把相應的模塊更改成jdk8

以上兩步便可！