On Thu, 31 Oct 2019 at 11:46, Peter Toye <netbe...@ptoye.com> wrote: > You should get an error message saying the file is corrupt. If you don't, > your system is different from mine.
Yep! Probably because it is. Open the OuterPane.java file in a text editor outside NetBeans and make sure the comments around the variables section are // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.ButtonGroup bgColours; .... // End of variables declaration//GEN-END:variables And in the project properties, remove all external libraries. Opens fine for me then. Best wishes, Neil --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@netbeans.apache.org For additional commands, e-mail: users-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists