Not able to run SWIG C# examples in VS 2010

Question

I am trying to get SWIG to work with Visual Studio and C#.

I downloaded swigwin-2.0.4.zip and converted the project to a VS 2010 project.

I am able to build

Answer 1

The solution for me was

• Move the used dll's to the Release (or Debug) directory
• Run CorFlags /32Bit+ file.exe

where file.exe is the executable produced by building the code.

For more information on what is going on Í found the following links helpful

http://www.davesquared.net/2008/12/systembadimageformatexception-on-64-bit.html

http://blogs.msdn.com/b/joshwil/archive/2005/05/06/415191.aspx

Answer 2

What worked for me was to:

1. Go to Build->Configuration Manager. For the C# project change AnyCpu to x86 and rebuild.
2. Copy example.dll to bin\x86\Debug (Release).

Doesn't require CorFlags.

Answer 3

I got the following answer from Gregory Bronner on the swig-user mailinglist:

    I had this issue as well (VS2010 , Windows 7, 64 bit computer, 32 bit mode dll, .NET 4) :

    The problem actually relates to being unable to load the DLLs

    There were two causes:

    #1:  All DLLs used by the C# assembly need to be in the same directory (or you need to change the lookup paths).


    #2: The C# or the C++ DLL (I forget which) had incorrect CofFlags -- use CorFlags  /32Bit+ *.dll or something like that.  You could also try using /UpgradeCLRHeader


    #3: You need to target the .NET 4.0 system in the project file, but 1 and 2 should get you started.

I will try these hints out and see whether they work and then post an answer if I am able to resolve the issue.