问题
I'm running my Java project in IntelliJ 14.1.1 and I'm using play framework. For some reason I can't compile any part of the code in IntelliJ (even though everything is working perfectly in the play environment). I get this error when trying to compile :
Information:5/26/15, 19:26 - Compilation completed with 1 error and 0 warnings in 1s 165ms
Error:Module 'doorman' production: java.lang.NullPointerException
'doorman' is the name of the project.
Can anyone please help?
回答1:
For me, it was the "Scala plugin" version 2016.3.4.
Removed it from IDEA and installed 2016.3.3 version.
Then everything started working.
UPDATE [2017-03-06]: With release 2016.3.9 (latest version), the bug is fixed, it seems.
回答2:
I recreated the entire project and imported it and it solved the problem. Couldn't find any way to resolve this issue
回答3:
This is a bug and it seems they are working on it. You can find a solution here
回答4:
delete ~/.IntellijIdea/system/compile-server/_ usually happens after unexpected shutdown of intellij.
回答5:
Removing play framework plugin solved the problem for me.
回答6:
For me, I updated Scala plugin to v2016.3.8. It worked for me.
回答7:
File -> Invalidate Caches / Restart
Doing this from the menu seems to clean all the secret directories
回答8:
This helped me:
Build->Rebuild project
来源：https://stackoverflow.com/questions/30464248/errormodule-name-production-java-lang-nullpointerexception