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I have a project in MFC that uses a WPF user control targeting .NET 4.0. When I run the program I get the following exception

An unhandled exception of type 'System.IO.FileLoadException' occurred in Unknown Module.

Additional information: Could not load file or assembly 'MyProject' , Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Could not find or load a type. (Exception from HRESULT: 0x80131522)

When I break the execution, It shows following module information 

Version: 6.3.9600.16384 (winblue_rtm.130821-1623)
Original Location: C:\Windows\SysWOW64\ntdll.dll

I tried single stepping from the begining, but the first time I hit F10 I get this exception. Can anyone please explain to me this exception/issue?

Ronnie
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  • FileMon usually helps me in these situations, not sure if you tried that yet. – EkoostikMartin Feb 24 '14 at 18:18
  • @EkoostikMartin FileMon now part of the process monitor in system internal kit. – Matt Feb 24 '14 at 18:20
  • There is not enough information here to say what is wrong, but my guess is that "MyProject" is your .Net control and for some reason it is not being found. Show your hosting code (C++), the results of fusion logging (http://www.hanselman.com/blog/BackToBasicsUsingFusionLogViewerToDebugObscureLoaderErrors.aspx), and the full assembly name (via `ildasm` or http://stackoverflow.com/questions/658446/how-do-i-find-the-fully-qualified-name-of-an-assembly) – Mitch Feb 24 '14 at 18:22
  • @Matt - I know, I still call it FileMon though! – EkoostikMartin Feb 24 '14 at 18:25
  • Have you seen error massage in Event viewer. – vikky Feb 25 '14 at 12:10
  • Try: http://stackoverflow.com/questions/26650375/is-there-any-class-count-limit-in-mfc-project-compiled-with-clr – Daniel Ryan Apr 03 '16 at 23:14

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