I'm new to the CC version of ID. Been using ID3 for years -- never had a problems like this. ID CC says "no errors." Yet it "cannot package...cannot copy necessary linked files." All my objects are tiff and CMYK or grayscale. Maybe this is a clue: I see an alert sign next to Colors & Inks " "contains a duplicate spot color. CMS is ON." Some objects do not print a high res PDF on my laser printer, but all print when I choose a low res PDF version. I need to get this job to the print service as soon as possible! Would appreciate clues of what may be wrong.
Might be an "invalid" character in a file or folder name.
Same guessing as Peter.
What OS and version?
But you should deliver your printer an open file, export a PDF and bring this to the printer.