Upon one-click publish: Exception in executing publishing: An item with the same key has already been added

Question

I realize that a billion people have asked about this error, but I\'ve looked at all of them. Mine seems different. I\'m not getting any sort of source code error, no stack trac

Answer 1

I got this error. It turns out there was a binding error with the solution file. Had to delete the publishing files and bind the solution. Then I could use the Publish button again.