vb.net - Deleting menu item results index error ("source not found") -

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in vb.net 2010, whenever delete menu item on windows form (a mainmenu1 object), exception thrown @ run-time suggesting there index value missing -- "source not found" error. need go mainmenu1 object on bottom of form @ design time , something? (btw, have tried deleting source code menu item, , menu item, , exception still thrown).

basically, occurring not allowing me delete menu item, , successful run thereafter.

i had problem. simple fix restore menu clicking undo. run code make sure still works. when have done this, close visual studio. open vs , load project. delete item menu , run project. should fine


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