I am having the same problem. Since Ghostscript upgraded to 9.22,
preview-latex stopped working altogether, independent of the document.
Sometimes I get "Error: /undefined in .runandhide" and sometimes "Error:
/typecheck in --setfileposition--".
I submitted a bug report to Ghostscript:
https://bugs.ghostscript.com/show_bug.cgi?id=698680
Apparently they removed the .runandhide operator in version 9.22, so it
is likely that this causes the problem.
It would be great if someone who actually understands what preview-latex
does could supply them with a sample input file and try to work out what
to use instead of ".runandhide". Thank you!
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