can't print from Lightroom

[russelbrown76]

Everytime I try to print from Lightroom classic i get the following message : 

Printing - Can't open "/private/tmp//pdfTransformXXXX.pdf."

Printing works from other applications.

Anyone have a fix?

[russelbrown76]

This only happens when printing borderless

[JP Hess]

Not that I'm a real expert at printing in Lightroom, but I have never seen that error message. What version of Lightroom are you using? Are you receiving this error when attempting to print to paper? What printer are you using? What operating system?

[russelbrown76]

Current version of Lightroom Classic CC.

Canon ipf8400

Printing to roll photo paper

Mac OS Sierra 10.12.6

Thanks for your reply.

[russelbrown76]

Lightroom 4 prints boderless to roll paper just fine.  Fast graphic process is checked. 

Lightroom Classic CC has fast graphic process checkbox greyed out!?

[JP Hess]

Sorry, I'm not at all familiar with the Mac OS. If you go to the page set up in the print module of Lightroom could you enable Fast graphic process? This is just a guess because I'm grabbing at straws.

[russelbrown76]

No, fast graphic process is greyed out so I cannot turn it on.

[JP Hess]

I have no idea, other than to check to see if there is a new updated driver for your printer.