Log shows no error but compilation fails

[bonanza123]

This is probably not a bug, but rather some feature request.

For some weird reason, tikz externalization is sometimes producing 0byte PDFs which let e.g. lualatex drop the following error

! error: (file tikz/abc.pdf) (pdf backend): reading image file failed ! ==> Fatal error occurred, no output PDF file produced!

However, this error is not visible in the texstudio log in the normal config (where the stdout is not shown). Meaning the workaround is to enable stdout printing and see the error. It would be more convenient if texstudio could parse such kind of errors as well and shown them in issues pane.

[sunderme]

test case ...

[bonanza123]

The same effect is observable via:

\documentclass{article}

\usepackage{filecontents,graphicx}
\begin{filecontents*}{test.pdf}
\end{filecontents*}

\begin{document}
    \includegraphics{test.pdf}
\end{document}