Unhandled event loop exception No more handles [Could not detect registered XULR

解决这个问题---Unhandled event loop exception
No more handles [Could not detect registered XULRunner to use]

 

eclipse->window->preferences->general->editors->file associations

选中JSP,换一个编辑器即可。不行的话就先将默认的jsp designer 移除,再选择。