An error occurs when you add a new file or image extension to the Library Management properties: The file type has not been added. Please see administrator.
Before you can add a new file or image extension to the library properties, you must first add that extension to the library file types whitelist.
Adding an Extension to the Library Files Whitelist
Prerequisite: You have permission to edit files on the Ektron server.
- Open siteroot\web.config .
- Find the element that begins with *.txt,
- Save web.config .
After completing the procedure, you can add the new file extension to the library properties.