have the second file that you are linking something to, loaded in FreeCAD at the same time
I thought to try that approach but I was not able to resolve the issue. I should have mentioned that I am linking several part models with Assembly 4. I have several parts that have their own FreeCAD model and are in separate FreeCAD files in their own directory. I added the parts to an assembly using the "insert a link to a part" feature. I subsequently broke the link to the file by moving it to another directory and saw the error message mentioned above. I did have the file open in FreeCAD in its new location but that did not resolve the link.
I noticed that when the link is valid, the properties for the object show the path to the file. However, when the link is not resolved, these properties do not appear. I could not find the file path property anywhere else. So, I was wondering if I am looking in the wrong place or if this capability is not available at the present time. My assumption at the moment is the path cannot be edited if the link is not resolved which is a bit of a catch22.
My work around was to delete the link and create a new one.