[Mono-winforms-list] All WinForms Projects Crash on Startup

[Jonathan Pobst]

This looks like our Data Execution Protection (DEP) bug, are you running 
XP 64bit?

https://bugzilla.novell.com/show_bug.cgi?id=343223

Jonathan

Ken Koch wrote:
> I am using VS 2005 or using gmcs to try to create the simplest possible 
> WinForms application and run it under Mono on Windows in preparation for 
> a Mac port.  Basically I create an empty WinForms project without any 
> changes.  I always get the following:
> 
>  
> 
>  
> 
> Unhandled Exception: System.TypeInitializationException: An exception 
> was thrown by the type initializer for 
> System.Windows.Forms.WindowsFormsSynchronizationContext ---> 
> System.NullReferenceException:
> 
>  Object reference not set to an instance of an object
> 
> at (wrapper native-to-managed) 
> System.Windows.Forms.XplatUIWin32.InternalWndProc 
> (intptr,System.Windows.Forms.Msg,intptr,intptr) <0x00000>
> 
> at (wrapper managed-to-native) 
> System.Windows.Forms.XplatUIWin32.Win32CreateWindow 
> (System.Windows.Forms.WindowExStyles,string,string,System.Windows.Forms.WindowStyles,int,int,int,int,intptr,intptr,in
> 
> tptr,intptr) <0x00004>
> 
> at System.Windows.Forms.XplatUIWin32.CreateWindow 
> (System.Windows.Forms.CreateParams) [0x000a1] in 
> C:\cygwin\tmp\monobuild\build\BUILD\mono-1.9.1\mcs\class\Managed.Windows.Forms\System.Windows.Forms\X
> 
> platUIWin32.cs:1588
> 
> at System.Windows.Forms.XplatUI.CreateWindow 
> (System.Windows.Forms.CreateParams) [0x00000] in 
> C:\cygwin\tmp\monobuild\build\BUILD\mono-1.9.1\mcs\class\Managed.Windows.Forms\System.Windows.Forms\XplatU
> 
> I.cs:475
> 
> at System.Windows.Forms.NativeWindow.CreateHandle 
> (System.Windows.Forms.CreateParams) [0x0000c] in 
> C:\cygwin\tmp\monobuild\build\BUILD\mono-1.9.1\mcs\class\Managed.Windows.Forms\System.Windows.Forms\N
> 
> ativeWindow.cs:112
> 
> at System.Windows.Forms.Control.CreateHandle () [0x0003f] in 
> C:\cygwin\tmp\monobuild\build\BUILD\mono-1.9.1\mcs\class\Managed.Windows.Forms\System.Windows.Forms\Control.cs:4375
> 
> at System.Windows.Forms.Control.CreateControl () [0x00044] in 
> C:\cygwin\tmp\monobuild\build\BUILD\mono-1.9.1\mcs\class\Managed.Windows.Forms\System.Windows.Forms\Control.cs:3711
> 
> at (wrapper remoting-invoke-with-check) 
> System.Windows.Forms.Control.CreateControl () <0x00036>
> 
> at System.Windows.Forms.WindowsFormsSynchronizationContext..cctor () 
> [0x0000a] in 
> C:\cygwin\tmp\monobuild\build\BUILD\mono-1.9.1\mcs\class\Managed.Windows.Forms\System.Windows.Forms\WindowsFormsSynchr
> 
> onizationContext.cs:47
> 
> --- End of inner exception stack trace ---
> 
>  
> 
> Command line applications work fine.   Presumably this is some sort of 
> setup issue, but any help would be appreciated. 
> 
>  
> 
>  
> 
> 
> ------------------------------------------------------------------------
> 
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