# what does "runaway argument" after \includegraphics mean?

code is

\includegraphics[width=0.5\paperwidth]{figures/112.jpg}

\includegraphics[scale=0.1]{figures/133}


in a suftesi document. No error, if the two includegraphics are commented out; they produce the error and no output - but I cannot see where a } is missing? without the [scale..] or [width=...] argument, some part of the jpg file appear in the output pdf.

[5] [6]
Runaway argument?
width=0.5\paperwidth ]{figures/112.jpg}
./4210action.tex:52: Paragraph ended before \Gin@iii was complete.
\par
l.52

I suspect you've forgotten a }', causing me to apply this
control sequence to too much text. How can we recover?
My plan is to forget the whole thing and hope for the best.


\documentclass{article}
`