Visual Studio “Could not copy” …. during build

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I have encountered similar error messages in Visual Studio 2013.

Mostly, I have found that this situation has occurred when a debug process was halted because of an exception.

When clean+build has not resolved this problem for me, I have had success by doing the following:

  • Closing Visual Studio
  • Deleting the bin and obj folders, and
  • Reopening Visual Studio.

This “bug” has existed since Visual Studio 2003.

Finally, I have also found that I can often overcome this problem by simply renaming the executable file and then deleting it.

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