Metricam: Could not load file or Assembly: Webcam.dll

Question

We are experiencing a problem with the Metricam library. The Metricam documentation states:

Your application platform target has to be “x86″. “AnyCPU” and “x64″ is currently not working because not all camera manufacturers supply 64-bit drivers / APIs. However, we are working on a 64-bit version of MetriCam. .NET 2.0 compatibility: If you have a .NET 4.0 project, please add the following line to your app.config: <startup useLegacyV2RuntimeActivationPolicy=”true” > </startup>

We have followed this instructions, and when we run our system, a small test app, on x64 it works fine, but when we run it on x86 we get a message saying

Could not load file or assembly: WebCam.dll

We are using .NET 4.0, and compile with Any CPU (attempting to compile with x86 fails due to other library dependencies).

The required .dll's are in the bin folder, and as I said, running this app works fine on x64.

At this stage we feel totally lost and out of ideas, so if anyone could help us, we would greatly appreciate it!

Thanks!

EDIT: We've now managed to compile in x86, to no avail. We have also discovered that the problem is in the Metricam.dll which is 32 bit. No closer to a solution though...

Answer 1

The problem lies in that you compile the assembly in "AnyCPU" and not "x86" as they require. It is not possibly to make a program work with both 64 and 32 bit at the same time. =(

Edit: Not that it helps a lot, but here's an answer from Microsoft about the differences: http://blogs.msdn.com/b/joshwil/archive/2005/04/08/406567.aspx

If the assemblies (DLLs) you are loading to the project would use AnyCPU it seems it would be a lot easier for you though.

Answer 2

please make sure to install Visual C++ Redistributable 2012 (x86) (select VSU4\vcredist_x86.exe in the download window):

http://www.microsoft.com/download/details.aspx?id=30679

Christian