I recently used pack and go on my assembly because the files were in seperate folders because I was taking parts from older projects and putting them together in a new one I was working on and wanted everything that I was using in the assembly to be in one folder. Unfortunately after I did that, whenever I try to add parts via drag and drop for routing it says "Drag and drop failed."
Also when I close it and try to save it says Document C:\ProgramData\SolidWorks\SolidWorks 2012\design library\routing\piping\elbows\90 degrees\90deg lr inch elbow.sldprt cannot be used as a routing library part. The document is already opened as F:\FinaFracking\90deg lr inc elbow.sldprt. Do you want touse the existing document? The document is on the F drive.