Comment 4 for bug 1507893

Hello Michael,

the error message would indicate that GVFS is indeed forwarding qpdfview to a FUSE mount which should usually work and I currently have no idea why it should not...

You should be able to view the terminal error messages the following way: In a terminal run "qpdfview --unique" which will make that version the unique instance of qpdfview, then you can open the document from your file manager which will forward this request to the instance you just started and any error messages should then be displayed in that terminal.

Best regards, Adam.