Error message "Invalid Project Name" appears while project creation

Error or Warning Message

"Invalid Project Name"

Explanation

For project creation, it is desired to generate new own directories with nested folders.
For that reason variable  _USTN_PROJECTSUBDIRS is set as follows:

_USTN_PROJECTSUBDIRS = DesignFiles\DGN
_USTN_PROJECTSUBDIRS > DesignFiles\DWG

Now, when creating new projects via the MicroStation Manager, the following information or error message appears: "Invalid project name".

How to Avoid

The reason for the problem is, that a parent folder needs to be created first before creating subfolders.
So for the example above the correct syntax is:

_USTN_PROJECTSUBDIRS = DesignFiles
_USTN_PROJECTSUBDIRS > DesignFiles\DGN
_USTN_PROJECTSUBDIRS > DesignFiles\DWG