java.lang.IllegalArgumentException: C:\Users\itabirca\Documents\NetBeansProjects\Arcomage\src\ro\joeblack\java\games is not inside C:\Users\itabirca\Documents\NetBeansProjects\Arcomage\src
        at org.netbeans.spi.project.support.ant.SourcesHelper$SourceRoot$Group.contains(SourcesHelper.java:198)
        at org.netbeans.spi.java.project.support.ui.PackageView.findNonExcludedPackages(PackageView.java:190)
        at org.netbeans.spi.java.project.support.ui.PackageView.findNonExcludedPackages(PackageView.java:216)
        at org.netbeans.spi.java.project.support.ui.PackageView.findNonExcludedPackages(PackageView.java:216)
        at org.netbeans.spi.java.project.support.ui.PackageView.findNonExcludedPackages(PackageView.java:216)
        at org.netbeans.spi.java.project.support.ui.PackageView.findNonExcludedPackages(PackageView.java:160)
        at org.netbeans.spi.java.project.support.ui.PackageViewChildren.findNonExcludedPackages(PackageViewChildren.java:271)
        at org.netbeans.spi.java.project.support.ui.PackageViewChildren.computeKeys(PackageViewChildren.java:263)
        at org.netbeans.spi.java.project.support.ui.PackageViewChildren.run(PackageViewChildren.java:209)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:577)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1030)