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Runaway argument?
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./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
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l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
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                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
Runaway argument?
./cambio.tex:45: Paragraph ended before \@firstofone was complete.
<to be read again> 
                   \par 
l.45 \begin{document}
                     
./cambio.tex:45: Undefined control sequence.
\Call@AtVeryEndDocument ...cumentHook \@undefined 
                                                  \global \let \Call@AtVeryE...
l.45 \begin{document}
                     
./cambio.tex:45: Argument of \@firstofone has an extra }.
<inserted text> 
                \par 
l.45 \begin{document}
                     
(That makes 100 errors; please try again.)
No pages of output.
Transcript written on /Users/quiben/Desktop/cambio-pres/.texpadtmp/cambio.log.


Smart typeset step unnecessary (5/latex): No new citations have been added to the source files since last typeset.

/Library/TeX/texbin/dvips -o /Users/quiben/Desktop/cambio-pres/.texpadtmp/cambio.ps /Users/quiben/Desktop/cambio-pres/.texpadtmp/cambio.dvi

This is dvips(k) 5.996 Copyright 2016 Radical Eye Software (www.radicaleye.com)
/Library/TeX/texbin/dvips: DVI file can't be opened: /Users/quiben/Desktop/cambio-pres/.texpadtmp/cambio.dvi: No such file or directory


/Applications/Texpad.app/Contents/Resources/osxbin/ps2pdf /Users/quiben/Desktop/cambio-pres/.texpadtmp/cambio.ps /Users/quiben/Desktop/cambio-pres/.texpadtmp/cambio.pdf

Error: /undefinedfilename in (/Users/quiben/Desktop/cambio-pres/.texpadtmp/cambio.ps)
Operand stack:

Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push
Dictionary stack:
   --dict:1203/1684(ro)(G)--   --dict:0/20(G)--   --dict:78/200(L)--
Current allocation mode is local
Last OS error: No such file or directory
GPL Ghostscript 9.20: Unrecoverable error, exit code 1