I'm trying to change a namespace in Visual Studio.

My folder structure looks something like this:

GameAlpha/
         GameAlpha.sln
         GameAlphaRelease/
         GameAlphaTest/
         GameAlphaLevelEditor/

These include namespaces like GameAlphaRelease. I want to change all this to GameBetaRelease.

Before this process, it built fine.

First, I changed the solution and project files from Alpha to Beta. Then, I did a "find-replace-all" on the namespace. Finally, I went through the properties of each project and changed the "Assembly Name" and "Default Namespace" to the appropriate Beta title.

However, now the solution does not build. The error is:

GameAlpha.accessor: The reference to 'GameAlpha.exe' was not found in the list of this projects references. (Project: GameBetaTest)

What am I doing wrong? If I remove project GameBetaTest, the solution builds just fine.

Also, what is the preferable way to change the names of the folders in the file system?