New Post: FileNotFoundException in XAML designer (Visual Studio 2012/2013)

When adding an OxyPlot component to a WPF form, I'm observing a System.IO.FileNotFoundException: Could not load file or assembly 'System.Core, Version=2.0.5.0 [...] in the XAML designer. I've confirmed this issues exists on my system in both Visual Studio 2012 and Visual Studio 2013, using projects configured for both .NET 4.0 and .NET 4.5.



Here is my implementation of OxyPlot in XAML:

<oxy:Plot x:Name="Plot"></oxy:Plot>

I've seen other posts reporting similar issues with OxyPlot, with the common recommendation being to repair Visual Studio. Unfortunately, repairing Visual Studio or the .NET Framework has not resolved the issue for me.

Interesting (although perhaps not indicative of a problem): I'm observing details in the stack trace that indicate a file system structure that does not exist on my system: at OxyPlot.Wpf.Plot.UpdateModel(Boolean updateData) in c:\TeamCity\buildAgent\work\f48330714bade418\Source\OxyPlot.Wpf\Plot.cs:line 1362. Perhaps this might be related?

The OxyPlot component does work properly at runtime, as shown with this example:



Here's the full exception from the XAML designer:

System.IO.FileNotFoundException
Could not load file or assembly 'System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes' or one of its dependencies. The system cannot find the file specified.
   at OxyPlot.PlotModel.Update(Boolean updateData)
   at OxyPlot.Wpf.Plot.UpdateModel(Boolean updateData) in c:\TeamCity\buildAgent\work\f48330714bade418\Source\OxyPlot.Wpf\Plot.cs:line 1362
   at OxyPlot.Wpf.Plot.UpdateModelAndVisuals(Boolean updateData) in c:\TeamCity\buildAgent\work\f48330714bade418\Source\OxyPlot.Wpf\Plot.cs:line 1375
   at OxyPlot.Wpf.Plot.ArrangeOverride(Size arrangeBounds) in c:\TeamCity\buildAgent\work\f48330714bade418\Source\OxyPlot.Wpf\Plot.cs:line 671
   at System.Windows.FrameworkElement.ArrangeCore(Rect finalRect)
   at System.Windows.UIElement.Arrange(Rect finalRect)
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.UIElement.UpdateLayout()
   at System.Windows.Interop.HwndSource.SetLayoutSize()
   at System.Windows.Interop.HwndSource.set_RootVisualInternal(Visual value)
   at System.Windows.Interop.HwndSource.set_RootVisual(Visual value)
   at Microsoft.Expression.DesignHost.Isolation.Remoting.RemoteUIElement.<>c__DisplayClass10.<Microsoft.Expression.DesignHost.Isolation.Remoting.IRemoteUIElement.CreateContent>b__f()
   at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.<>c__DisplayClass2a`1.<MarshalIn>b__29()
   at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.Call.InvokeWorker()
   at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.Call.Invoke(Boolean waitingInExternalCall)
   at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.InvokeCall(Call call)
   at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.ProcessQueue(CallQueue queue)
   at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.ProcessInboundAsyncQueue(Int32 identity)
   at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.ProcessMessage(Int32 msg, IntPtr wParam, IntPtr lParam, Boolean elevatedQuery, Boolean& handled)
   at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.OnWindowMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at Microsoft.Expression.DesignHost.Isolation.Remoting.MessageOnlyHwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   at System.Windows.Threading.Dispatcher.Run()
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at System.Windows.Application.Run(Window window)
   at System.Windows.Application.Run()
   at Microsoft.Expression.DesignHost.Isolation.DesignerProcess.RunApplication()
   at Microsoft.Expression.DesignHost.Isolation.DesignerProcess.<>c__DisplayClass2.<Main>b__0()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

Thanks for any help, and please let me know if I can provide additional information.