Unhandled WPF exception

SharpDevelop Version : 4.4.2.9749-39bf891c
.NET Version         : 4.0.30319.42000
OS Version           : Microsoft Windows NT 6.2.9200.0
Current culture      : English (United States) (en-US)
Running under WOW6432, processor architecture: x86-64
Working Set Memory   : 156756kb
GC Heap Memory       : 37370kb

Unhandled WPF exception
Exception thrown:
System.Runtime.InteropServices.COMException (0x80131301): Process was terminated. (Exception from HRESULT: 0x80131301)
   at Debugger.Interop.CorDebug.ICorDebugProcess.__Stop(UInt32 dwTimeoutIgnored)
   at Debugger.Process.AsyncTerminate()
   at Debugger.Process.Terminate()
   at ICSharpCode.SharpDevelop.Services.WindowsDebugger.Stop()
   at ICSharpCode.SharpDevelop.Debugging.DebuggerService.OnBeforeSolutionClosing(Object sender, SolutionCancelEventArgs e)
   at ICSharpCode.SharpDevelop.Project.ProjectService.OnBeforeSolutionClosing(SolutionCancelEventArgs e)
   at ICSharpCode.SharpDevelop.Project.ProjectService.IsClosingCanceled()
   at ICSharpCode.SharpDevelop.Gui.WpfWorkbench.OnClosing(CancelEventArgs e)
   at System.Windows.Window.WmClose()
   at System.Windows.Window.WindowFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

---- Recent log messages:
22:21:57.546 [1] DEBUG - Debugger: Callback: LoadModule C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.Wrapper.dll
22:21:57.551 [1] DEBUG - Debugger: Callback: LoadAssembly
22:21:57.551 [1] DEBUG - Debugger: Callback: LoadModule C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll
22:21:57.562 [1] DEBUG - Debugger: Callback: LoadAssembly
22:21:57.562 [1] DEBUG - Debugger: Callback: LoadModule C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll
22:22:03.316 [1] DEBUG - Debugger: Callback: LoadAssembly
22:22:03.316 [1] DEBUG - Debugger: Callback: LoadModule C:\WINDOWS\assembly\GAC\Microsoft.mshtml\7.0.3300.0__b03f5f7f11d50a3a\Microsoft.mshtml.dll
22:22:03.336 [1] DEBUG - Debugger: Callback: Exception
22:22:03.336 [1] DEBUG - Debugger: Process has queued callbacks
22:22:03.346 [1] DEBUG - Debugger: Callback: Exception2 (type=DEBUG_EXCEPTION_FIRST_CHANCE)
22:22:03.348 [1] DEBUG - Debugger: Callback: Exception2 (type=DEBUG_EXCEPTION_CATCH_HANDLER_FOUND)
22:22:03.351 [1] DEBUG - Debugger: Callback: CreateThread 2304
22:22:03.366 [1] DEBUG - Debugger: Callback: CreateThread 11260
22:22:05.990 [11] DEBUG - Telling worker process to exit
22:22:05.990 [11] DEBUG - Waiting for thread-join
22:22:05.991 [7] DEBUG - Cannot read from WorkerProcess 9356: end of stream
22:22:05.991 [7] DEBUG - Stopped reading from WorkerProcess 9356.
22:22:05.991 [7] DEBUG - Telling worker process to exit
22:22:05.991 [7] DEBUG - End of reader thread on WorkerProcess 9356.
22:22:05.991 [11] DEBUG - Joined!
22:22:20.766 [1] DEBUG - Debugger: Callback: Exception
22:22:20.766 [1] DEBUG - Debugger: Process has queued callbacks
22:22:20.768 [1] DEBUG - Debugger: Callback: Exception2 (type=DEBUG_EXCEPTION_FIRST_CHANCE)
22:22:20.769 [1] DEBUG - Debugger: Callback: Exception2 (type=DEBUG_EXCEPTION_CATCH_HANDLER_FOUND)
22:22:26.236 [1] DEBUG - Debugger: Callback: CreateThread 11096

---- Post-error application state information:
Installed 3rd party AddIns:
Workbench.ActiveContent: [AvalonEditViewContent D:\mr-college-al-results\Program.vb]
ProjectService.OpenSolution: [Solution: FileName=D:\mr-college-al-results\MR College AL Results.sln, HasProjects=True, ReadOnly=False]
ProjectService.CurrentProject: [VBNetProject: MR College AL Results]