When trying to compile a .tex document which required a .sty file named Cobordism.sty a strange error arised:
! Undefined control sequence.
\anchor ... \csname pgf@anchor@\pgf@sm@shape@name
@#1\endcsname {#2}
l.4118 }
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
Or for short:
Cobordism.sty error line 4118 Undefined control sequence. }
At first I though this error was due to my insufficient setup, but then another user Torbjørn T. kindly re-tested my attempt - the same exact error occured. I think it would be too bold to suggest that the .sty file itself has a coding error. As Torbjørn T. suggested in this answer to my previous problem the crux is probably in the compatibility (maybe Cobordism.sty is a predecessor to a newer package like for example tqft.sty).
To make things easier for the ones who are interested in helping I posted the whole file (all of the components necessary for compilation, including Cobordism.sty) here (in the .rar format).
DISCLAIMER: BE WELL AWARE THAT THE FILE DISTRIBUTED WAS DOWNLOADED AS A SOURCE FILE FROM ARXIV. VIA ARXIV POLICIES THIS FALLS UNDER THE FAIR USE. ALL OF THE CREDIT BELONGS TO THE ORIGINAL AUTHORS.
\xpatchcmd? – Steven B. Segletes Jul 28 '17 at 13:21