Error Value cannot be null. Parameter name:solutionDirectory

That is not C# Code. That is C++ Code. And it looks like native C++, not C++ .Net.

This is C# forum, we cannot really help with this problem.

Could a moderator or admin please move this into the fitting Forum for native C++ development or Kinekt devleopment. Or at least give a link to those Forums?

P.S.: Please use Codeblocks for posting Code. reading such long code without Syntax highlighting is quite problematic.

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Let's talk about MVVM: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/b1a8bf14-4acd-4d77-9df8-bdb95b02dbe2 Please mark post as helpfull and answers respectively.