“File has a different computed hash than specified in manifest” error when signing the EXE

Question

My ClickOnce installation fails with an error:

File, WindowsFormsProject.exe, has a different computed hash than specified in manifest.

Answer 1

If you are using MSBuild 4, you can use AfterTargets property to sign assembly just after it was created and before any further steps will be taken. Remove your post-build step and add this block to your project instead:

  
    http://timestamp.verisign.com/scripts/timstamp.dll
  Foo bar
  /sha1 578a9486f10ed1118f2b5f428afb842e3f374793