Exception has been thrown by the target of an invocation.

[MichCl]

I did some cleanup in my code, and now I'm getting the above error message, but I'm having trouble seeing the reason. I searched the internet and found this article, but I don't see that I'm having that issue. http://www.softwareandfinance.com/forums/index.php?topic=314.0[^] In my Program.cs class, I have the following lines of code.

            Control control = new Control();
            Assembly \_assembly = Assembly.LoadFrom(programDll);
            Type \_type = \_assembly.GetType("CWriter.ProgramControl");
            //problem here?
            Object \_objectInstance = Activator.CreateInstance(\_type); //exception thrown

I tried adding a breakpoint in the ProgramControl constructor, but it doesn't get hit. The constructor doesn't have any arguments to it.

[Pete OHanlon]

Wrap the Activator.CreateInstance in a try/catch block and then take a look at the full exception. Is there an InnerException that provides more details (there should be)?

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[MichCl]

That helped a lot. Thanks! It looks like it can't find a file that the class it's trying to invoke is trying to use. I had pulled some code into it's own SerialNumber class. That's the problem. Thank you!