LaTeX.org

Rainer,
After very careful checking using another test account I discovered that the problem was indeed what you had suggested. An old graphics.sty file was the culprit. Once deleted everything works fine. It must be that the latest texlive 2020 finally caused the old files to become a problem since ...

Yes I was worried there may have been an issue with local files (I submit to agu journals) so I created a new user account and compiled there unfortunately with identical results and none of the sty files from agu got pulled in.

I should add that this problem occurs with ALL my tex files and ALL ...

As further information I compiled the original file on Debian stable (stretch) and it worked fine. I am currently using Ubuntu 20.04 which uses texlive 2020

I switched to graphicx (which was what I tried originally) and the message is identical. I attach the logfile

The following tex file does not compile with pdflatex

\RequirePackage{latexbug} % <--should be always the first line (see CONTRIBUTING)!
\documentclass{article}
\usepackage{graphics}

\begin{document}
text
\begin{figure}[tbp]
\centering
\includegraphics[width=0.7\textwidth]{ubndens}
\caption{test ...