Uh oh, locking up the editor

Have you tried with a newer version of Vassal? Say 3.7.24?

Another option:

  • Unpack the module - say MyModule.vmod
     $ mkdir tmp
     $ cd tmp
     $ unzip ../MyModule.vmod
    
  • Open buildFile.xml in your favorite text editor
  • Find the offending prototype definition by searching for its name - say “Offending Prototype”
  • Remove element
     <VASSAL.build.module.PrototypeDefinition name="Offending Prototype" description="...">...</VASSAL.build.module.PrototypeDefinition>
    
    You may want to copy that to some other file, for future reference.
  • Save the buildFile.xml
  • Pack up the module again
    $ zip ../MyModuleEdited.vmod *
    

If you need more help, you should probably post your module so that people may take a look at it.

Also, remember to mark the solution to your problem so that others may more easily find the solution to their problems.

This should really go in the Module Design sub-forum. Technical Support & Bugs is more for bugs in Vassal or technical issues running Vassal. See also here and How to report problems.

Yours,
Christian