Commented Unassigned: Enable-RazorGenerator Throws Exception [116]

### Issue

Running the `Enable-RazorGenerator` command from the Package Manager Console emits the following error for each `.cshtml` file in the project.

Exception calling "GetItem" with "1" argument(s): "Value does not fall within the expected range."
At C:\{path}\{to}\packages\RazorGenerator.Mvc.2.1.1\tools\RazorGenerator.psm1:63 char:46
+ $solutionExplorer.GetItem <<<< ("$SolutionName\$ProjectName$relativePath").UIHierarchyItems.Expanded = $false
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : DotNetMethodException

I expected to be greeted with a success message or no output at all.

### Reproduction

1. In Visual Studio (I have VS Permium 2012 Version 11.0.60315.01 Update 2) install the RazorGenerator extension (I used version 1.5.5)
2. File > New Project > C#/MVC 4 > Internet Application
3. Install `RazorGenerator.Mvc` (I have version 2.1.1)
4. In the Package Manager Console run `Enable-RazorGenerator`

#### Related Issue?

Interestingly enough, `*.generated.cs` files are still created- however the solution won't build. I'm get the following compilation error:

The type or namespace name 'AuthenticationClientData' could not be found (are you missing a using directive or an assembly reference?)

For the file `C:\{path}\{to}\Views\Account\_ExternalLoginsListPartial.generated.cs`, line `33` column `93`.

This may be a ripple effect from the `GetItem` exception above, so I won't open it as its own issue. If it is in fact a separate issue, let me know and I'll move this to a another thread.

Comments: This is the line of code that breaks for you: $solutionExplorer.GetItem("$SolutionName\$ProjectName$relativePath").UIHierarchyItems.Expanded = $false Maybe due to some timing issue, some of the variables end up not being set correctly, causing GetItem() to blow up.