This error message is displayed when you try to add project items to a source control repository, but TestComplete detected that some project items’ files reside in a network shared folder, or on some other drive, but not on the drive, on which the project file is located. Some source control providers may fail to process these files correctly and will not add the files to the repository (TestComplete does not add the file itself, it transfers this request to a source control provider). TestComplete displays this message to warn you about possible issues and to inform you about problematic files. You can see their names in the message box.
If you encounter issues with adding these files to the repository, it means your source control provider does not support such files. To avoid issues, you can exclude these files from source control operations by clearing check boxes for the appropriate project items in the Select Project items dialog, which is displayed when you are checking in or checking out your project items from TestComplete. To work with these files, use some other source control client application, than TestComplete.
See Also
Integration With Source Control Systems
Integration With Source Control Systems via SCC API Providers (Legacy)