I'm trying to fix up my Visual Source Safe bindings for a project I have and when I select the location I believe a project should be bound to, i get a dialog that says:
The folder you chose is not a valid binding root for the projects you have selected. You attempted to retarget a solution to a source control folder that is not within the solution's root. In the change source control dialog box, specify the root for the solution. Select the folder 5 levels higher in the tree to chagne the source control bindings correctly.
What on earth does that mean? There are no folders 5 levels higher.
I think I figured this one out. I opened my vcproj file and searched for ..\..\.. and found a couple of references to files 5 directories "higher". I removed those references (the files weren't really there) and reopened the project. After doing this, I could rebind the project to SourceSafe.
You may want to check that the local version of the file "(project name).vspscc" is the latest one. It solved the problem in my context.
I had the same basic issue, with VSS asking me to select a directory two levels higher than the one I had selected.
Editing the .vcproj file in Notepad, I found "SccLocalPath=..\..", and references to two files (both of which should have been removed from the project) located in "..\.." relative-path directories. I manually removed those two files from the .vcproj and changed SccLocalPath to simply "..", problem solved.
来源：https://stackoverflow.com/questions/448350/valid-binding-root-for-vss