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I am trying to make a presentation in beamer. However when I include letters in the math environment I get the following error message:

!pdfTeX error: pdflatex (file mathkerncmssi8): Font mathkerncmssi8 at 525 not f
==> Fatal error occurred, no output PDF file produced!

What am I doing wrong?






marked as duplicate by user36296 beamer Nov 20 '18 at 10:42

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