Re: NB8.1

I've been having a lot of grief from NB lately.  Changed one little thing
and everything fell over.  Currently, I'm getting the following after a
successful build of my Platform project/modules when I attempt to run the
project.  This is obviously not in my code.  Is there any way I can get my
project to get past this and run?  I'm running it from within the ide at
the present.  Module org.openide.filesystems is in my project.

java.lang.AssertionError: Has to be NbRepository:
org.openide.filesystems.Repository@2f2e7c51
    at org.netbeans.core.startup.Main.start(Main.java:306)
    at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:123)
    at java.lang.Thread.run(Thread.java:745)

Thanks for any guidance.