I did try to check-in the file via Workbench prior to creating the sub-directory in Aministrator. This is the error I received . . .
E03060096: "Error accessing the path: <folder name>. Either the path does not exist or access to the path is denied."
Plug-in Provider: CA
Plug-in Name: CA Harvest SCM Workbench
Plug-in ID: com.ca
The error was detected in Class: com.ca