When files referenced by an Inventor model are not found automatically, drawing views derived from this model are said to contain unresolved file references.
A model documentation drawing view can contain unresolved file references for any of the following reasons.
For cases 1 and 2, use Autodesk Inventor to update the project file to specify the current location of the files that are not found automatically.
For case 3, use the VIEWSETPROJ command to select the correct project file as the active project file.