#4 Add-in crashes when project not in solution sub-tree

[Brian Rogers]

If any of the projects in the solution are not in a sub-folder of the solution file location, the add-in crashes. I keep my unit-test code in a separate root folder from my source code, so this makes the add-in (which I really like) unusable for me.

e.g.
\Dev\src\solution.sln
\Dec\src\Code\MyCode.csproj
\Test\src\Code\MyTestCode.csproj

To reproduce:
Create a solution with a project
Add an second solution in a folder that is not in the sub-tree of the folder containing the solution.
Invoke the add-in and refresh.