You can change the file path to a referenced DGN file or search for a DGN underlay when it is reported as not found.
When you open a drawing with an attached DGN file, the path of the selected DGN underlay is displayed in the External References palette under Found At in the Detail list. The path displayed is the actual path where the DGN file was found. The path where the DGN file was originally attached is displayed under Saved Path.
To locate the DGN file, the program searches the following paths and folders in the following order:
If you open a drawing that contains a DGN file that is not in the saved path location or in any of the defined search paths, the External References palette displays Not Found in the Status column of the File References list, and the Found At box is blank in the Details list.
You can remove the path from the file name or specify a relative path by manually editing the path in the Found At box or by clicking the ellipsis at the right side of the Found At box. This opens a Select DGN File dialog box.
.For more information about using full paths, relative paths, and project names, see