disable/enable compilation errors in Netbeans

Question

I\'ve made the terrible mistake of telling Netbeans always to ignore compilation errors when running my Maven application.

Now that I want to revoke this, I can\'t se

Answer 1

For NetBeans 8.0.2 (in my case):

C:\Users\username\AppData\Roaming\NetBeans\8.0.2\config\Preferences\org\netbeans\modules\java\source\BuildArtifactMapperImpl.properties

file contains: askBeforeRunWithErrors=false

Set to true or file can be deleted, to reset.