idea使用问题

1、

问题：

突发断电导致idea的play项目错误，无法识别build.sbt,build.sbt文件报错，Cannot resolve symbol

解决方案：

For anyone having the same problem, start by trying the following in Idea:

File -> Invalidate Caches -> Invalidate and Restart

 

2、

问题：

idea自动导入设置

解决方案：