[MonoTouch] HELP! Installed Xcode4, Monodevelop wont open my projects anymore

[dermotos]

I installed Monodevelop 2.8 about 2 days ago and have been working in it
since.
I went to open a xib file for the first time, and realised I needed xcode4.

Ive just installed xcode4, and now monodevelop wont open my project. I get
an error on each project in the solution. Attempting to open a project
directly gives me the below error.


Id appreciate any help as this has stopped me dead and I cannot continue
working until I get it fixed.

MonoDevelop.Projects.Formats.MSBuild.UnknownSolutionItemTypeException:
Unknown solution item type:
{E613F3A2-FE9C-494F-B74E-F63BCB86FEA6};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}
  at
MonoDevelop.Projects.Formats.MSBuild.MSBuildProjectHandler.CreateSolutionItem
(IProgressMonitor monitor,
MonoDevelop.Projects.Formats.MSBuild.MSBuildProject p, System.String
fileName, System.String language, System.String typeGuids, System.String
itemType, System.Type itemClass) [0x0015e] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Formats.MSBuild/MSBuildProjectHandler.cs:338 
  at MonoDevelop.Projects.Formats.MSBuild.MSBuildProjectHandler.Load
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Formats.MSBuild.MSBuildFileFormat expectedFormat,
System.String language, System.Type itemClass) [0x00182] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Formats.MSBuild/MSBuildProjectHandler.cs:281 
  at MonoDevelop.Projects.Extensions.DotNetProjectNode.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Formats.MSBuild.MSBuildFileFormat expectedFormat,
System.String itemGuid) [0x00016] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Extensions/DotNetProjectNode.cs:66 
  at MonoDevelop.Projects.Formats.MSBuild.MSBuildProjectService.LoadItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Formats.MSBuild.MSBuildFileFormat expectedFormat,
System.String typeGuid, System.String itemGuid) [0x00024] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Formats.MSBuild/MSBuildProjectService.cs:91 
  at MonoDevelop.Projects.Formats.MSBuild.MSBuildFileFormat.ReadFile
(FilePath file, System.Type expectedType, IProgressMonitor monitor)
[0x0002b] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Formats.MSBuild/MSBuildFileFormat.cs:163 
  at MonoDevelop.Projects.ProjectService.ReadFile (IProgressMonitor monitor,
System.String file, System.Type expectedType,
MonoDevelop.Projects.FileFormat& format) [0x0002d] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:310 
  at
MonoDevelop.Projects.ProjectService+<ReadSolutionItem>c__AnonStoreyBA.<>m__8A
(IProgressMonitor , System.String ) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:208 
  at MonoDevelop.Projects.DefaultProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:672 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:102 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x0000c] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:93 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:102 
  at MonoDevelop.Autotools.MakefileProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/addins/MonoDevelop.Autotools/MakefileProjectServiceExtension.cs:69 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x0000c] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:93 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:102 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x0000c] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:93 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:102 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x0000c] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:93 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:102 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x0000c] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:93 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:102 
  at MonoDevelop.Projects.CompiledAssemblyExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x0003e] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/CompiledAssemblyProject.cs:223 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x0000c] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:93 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:102 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x0000c] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:93 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName) [0x00000] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:102 
  at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem
(IProgressMonitor monitor, System.String fileName,
MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x0000c] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectServiceExtension.cs:93 
  at MonoDevelop.Projects.ProjectService.ReadSolutionItem (IProgressMonitor
monitor, System.String file) [0x00059] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:206 
  at MonoDevelop.Projects.ProjectService.GetWrapperSolution
(IProgressMonitor monitor, System.String filename) [0x00093] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/ProjectService.cs:529 
  at MonoDevelop.Ide.RootWorkspace.BackgroundLoadWorkspace (IProgressMonitor
monitor, System.String filename, Boolean loadPreferences) [0x000bb] in
/private/tmp/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/RootWorkspace.cs:561 

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