When a vMicro solution is under TFS source control, a build fails because it gets an "Access Denied" exception trying to copy the .cpp/.h files (build output attached).  When files are under TFS source control, the read only attribute is set unless it has been checked out for edit.  From the error message/stack dump vMicro must be trying to open the file for write access and is denied because of the read-only attribute. A non-source control version of the solution successfully builds .  Any suggestions on how to get vMicro to be compatible with TFS source control?

If you run Visual Studio as an Administrator does the error persist?

The problem is that we can not access the build folder due to a permissions problem. Possibly a virus checker preventing it or just windows permissions. This is unrelated to the permissions/readonly state of the source code.

The error is "System.UnauthorizedAccessException: Access to the path ... is denied"

ather_m0_express/Debug 

Does the build folder exist? It should be automatically created.

Thank you, we have replicated this issue and will produce a fix over the next 24 hours.

Thank-you, that has fixed my problem.  Will this be incorporated into the next release of VisualMicro?  Also, I noticed with this updated that when I loaded the solution I got the following message in VS studio's status bar at the bottom:  Visual Studio Intellisense - Unable to write intellisense of sketch Access to the path k.vsarduino.h' is denied.

I checked the file and the read-only attribute is set.  There are 2 other files in that directory and their read-only attribute is not set.