Rebuild Solution - "Parameter not supported by the "SignFile" Task

Question

I'm trying to create a small Excel-Addin with just 1 Project in the Solution. I downloaded the Tools at http://social.msdn.microsoft.com/Forums/vstudio/en-US/0c144a87-917a-4eb1-8716-da61f7efdafc/office-developer-tools-for-visual-studio-2013-march-2014-update-now-available?forum=lightswitch and could create a Add-In.

I can even debug it, but as soon as I rebuild the Solution, i get the 2 following errors:

Error 1 The "TargetFrameworkVersion" parameter is not supported by the "SignFile" task. Verify the parameter exists on the task, and it is a settable public instance property.
Error 2 The "SignFile" task could not be initialized with its input parameters.

Funny enought, on another machine the rebuilding is working perfectly and as far as the other developer knows he didn't do anything special.

I checked a bout abut this SignFile Task, f.e. :http://msdn.microsoft.com/en-us/library/ms164304.aspx , but when I unload the Project and check the file, there are no such entries there.

On the problematic machine I created a new AddIn-Solution and run even on a empty Solution in the exact same problems.

P.S.: I can't uncheck the "Sign the ClickOnce manifists" Checkbox in the Signing tab. From what I've found a certifate expired, but how is that possible if I create a new Solution?

Thanks in advance Matthias

Answer 1

This seem to be a bug with visual studio. I had the issue with Visual Studio Premium 2013 update 2. But with Update 3 (12.0.30723.00), the issue is gone.