Using MSBuild (from Visual Studio 2005 April CTP) with a solution file (.sln)

Previously, I listed the steps you could take to move output files from library builds into the Bin folder of a File System Web Site using post build events. The issue that this process addressed has been fixed in the April CTP of Visual Studio 2005. However, the issue has not been fixed for using MSBuild. To reproduce the error, remove the Bin folder of a File System Web Site and use MSBuild to build the solution from the .sln file. MSBuild will error and the project will not build. This can be resolved by following the same steps I previously listed on 4/13/2005. Be sure to read the last paragraph for information concerning source control management and continuous integration.