[MonoDevelop] Unable to Create Solutions or open Files in Mono Dev 2.4 or 2.6 on Windows 7 x64

[dev 13]

I am trying to develop in Unity and Mono and have been unsuccessful in
getting MonoDevelop to work correctly.

I have searched all over but have not found a solution and have been unable
to resolve this issue. Any help is appreciated. I have been unable to
develop in MonoDevelop. It throws exceptions every time I try to open a file
or create a solution. Unable to use new or previously existing solutions.

Is there anything I can do to solve this issue?

Tried clean installs of Both Unity and MonoDevelop. I am able to open them
fine in text editors and visual studio, but I want to be able to debug and
use MonoDevelop.

Windows 7 x64,
Latest Stable versions of Unity and MonoDevelop

Let me know if there is any other information, errors, or logging I would be
able to provide. I am green to Mono and Unity.

Thanks again.


Sample Exception:

Error:
The file 'F:\**.cs' could not be opened. Exception has been thrown by the
target of an invocation.

Details:
System.Reflection.TargetInvocationException: Exception has been thrown by
the target of an invocation. ---> System.ArgumentException: The path is not
of a legal form.

   at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32
maxPathLength)

   at System.IO.Path.GetFullPathInternal(String path)

   at System.IO.Path.GetFullPath(String path)

   at MonoDevelop.Ide.Gui.Components.FileBrowser.set_CurrentDir(String
value)

   at MonoDevelop.Ide.Gui.Components.FileBrowser..ctor()

   at MonoDevelop.Ide.Gui.Pads.FileScout..ctor()

   --- End of inner exception stack trace ---

   at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean
publicOnly, Boolean noCheck, Boolean& canBeCached,
RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)

   at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean
skipCheckThis, Boolean fillCache)

   at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly,
Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)

   at System.Activator.CreateInstance(Type type, Boolean nonPublic)

   at Mono.Addins.RuntimeAddin.CreateInstance(String typeName, Boolean
throwIfNotFound)

   at MonoDevelop.Ide.Codons.PadCodon.CreatePad()

   at MonoDevelop.Ide.Codons.PadCodon.InitializePadContent(IPadWindow
window)

   at MonoDevelop.Ide.Gui.PadWindow.CreateContent()

   at MonoDevelop.Ide.Gui.PadWindow.get_Content()

   at MonoDevelop.Ide.Gui.Pad.get_Content()

   at MonoDevelop.Ide.Gui.Workbench.GetPad[T]()

   at MonoDevelop.SourceEditor.SourceEditorView..ctor()

   at
MonoDevelop.SourceEditor.SourceEditorDisplayBinding.CreateContent(FilePath
fileName, String mimeType, Project ownerProject)

   at MonoDevelop.Ide.Gui.LoadFileWrapper.Invoke(String fileName)
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