MIssing BIN DLLs from VS Website References

If you are ever in the predicament where after copying over a Visual Studio 2005 website to another machine and are not finished working out the dependencies, here's a tip: Make sure all the assemblies listed in the "add assembly" tags in the web.config can be found on the current machine first, or else none of the Bin folder DLLs will be added as references, no matter how hard you try.

I ran into this problem, and Visual Studio 2005 refused to add the Bin folder references, until those web.config assemblies had their match in the GAC. Go figure!