Cannot Add Unit test Project or Open Existing Unit Test project in VS 2012 - by jklever

Status : 

  Not Reproducible<br /><br />
		The product team could not reproduce this item with the description and steps provided.<br /><br />
		A more detailed explanation for the resolution of this particular item may have been provided in the comments section.

Sign in
to vote
ID 778576 Comments
Status Resolved Workarounds
Type Bug Repros 2
Opened 2/5/2013 8:31:20 AM
Access Restriction Public


When I attempt to add a Test Project I get the following error: 
"There is a missing project subtype.
Subtype: '{3AC096D0-A1C2-E12C-1390-A8335801FDAB}' is unsupported by this installation."

Also, when I attempt to open an existing solution that contains a test project, I am told that the project is incompatible and will not open.  I have tried the proposed solution from Microsoft found here: but reinstalling the software and making the registry change using the file attached by Microsoft does not work.  
Sign in to post a comment.
Posted by AtomicProf on 4/19/2013 at 6:29 AM
I have a similar issue with VS 2012 Ultimate.
A -- I have installed VS 2012 with update two on a Windows 7 SP 1 box.
B -- My coworker have "the same" installation
C -- I check out a solution with several projects -- The UnitTest project says that it is "This Project is incompatible with the current edition of Visual Studio"
D -- It is compatible with VS 2012 on my coworkers machine.

E -- If I try to open the UnitTest project on its own, it loads the solution that it is included in.
F -- Also I am unable to create new projects, or files, I get "Failed to create 'ImageSource' from the text '..\Images\Medium.png' Message.

Posted by Marcel Rossi, redM Software on 4/7/2013 at 4:06 AM
During uninstalling the Test Controller I saw that it was installed in german Language.
My VS is installed in english Language.
Maybe helpful...

Posted by jklever on 2/5/2013 at 12:07 PM
Issue Resolved. I had to uninstall the Microsoft Test Agent and Test Controller that are part of Visual Studio 2012 Update 2 CTP 2. After uninstalling this, I can now open test projects.
Posted by Macy [MSFT] on 2/5/2013 at 8:50 AM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(