[Tex/LaTex] Beamer fails with mathematics

beamermiktex

Yesterday I bought a new laptop and installed MikTeX. Today I tried a minimal Beamer document and it failed to run.
Other, non-Beamer, TeX files work OK. Also OK are Beamer files without mathematics. What am I doing wrong?

Here is the .tex file: 

\documentclass{beamer}

\begin{document}
\begin{frame}

  $\ell$     <- with only this line, no problem

   $l$       <- this line causes the whole thing to fail    

\end{frame}
\end{document}

The console output suggests that "makepk" is the culprit. Here is the start of the corresponding log file:

2018-03-10 12:36:49,678-0700 INFO miktex-makepk – starting with command line: miktex-makepk –enable-installer –verbose mathkerncmssi8 450 600 0+450/600

2018-03-10 12:36:49,681-0700 INFO makepk – Trying to make PK font mathkerncmssi8 at 450 DPI…

2018-03-10 12:36:49,714-0700 INFO makepk – The METFAONT mode is: ljfour

2018-03-10 12:36:49,726-0700 INFO makepk – Running miktex-makemf.exe…

2018-03-10 12:36:49,727-0700 INFO makepk – running: miktex-makemf.exe –verbose mathkerncmssi8

2018-03-10 12:36:50,066-0700 INFO makepk – Running miktex-ttf2pk.exe…

2018-03-10 12:36:50,066-0700 INFO makepk – running: miktex-ttf2pk.exe -q -t mathkerncmssi8

2018-03-10 12:37:26,637-0700 FATAL miktex-makepk – The process terminated due to an access violation.

2018-03-10 12:37:26,637-0700 FATAL miktex-makepk – Info: fileName="C:\Program Files\MiKTeX 2.9\miktex\bin\x64\miktex-ttf2pk.exe"

2018-03-10 12:37:26,638-0700 FATAL miktex-makepk – Source: Libraries\MiKTeX\Core\Process\win\winProcess.cpp

2018-03-10 12:37:26,638-0700 FATAL miktex-makepk – Line: 435

2018-03-10 12:40:12,640-0700 INFO miktex-makepk – starting with command line: miktex-makepk –enable-installer –verbose mathkerncmssi8 450 600 0+450/600

2018-03-10 12:40:12,643-0700 INFO makepk – Trying to make PK font mathkerncmssi8 at 450 DPI…

2018-03-10 12:40:12,655-0700 INFO makepk – etc…..

I'm a non-technical person so none of this makes sense to me. Is there an easy or obvious fix??

Best Answer

Run updmap on a command line.

Or run in the (new) miktex console (user mode) in the tasks menu "Refresh font map files".

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