I always port solution but this post is not a solution but rather just “For Your Information”.
I try to run TailspinSpyworks-v0.9 in Visual Studio 2015 RTM using IE 11 I have no issue. But if I used Project Spartan then it failed (see the attachment). Then I created a new Web Form project, it behaved the same. I created a new MVC Web Project as well and nothing has changes.
That mean Project Spartan is not working with Visual Studio for now. Till when… yet to know.