I see the same error on 24.04 when I run epubcheck. /usr/bin/epubcheck
is a symlink to ../share/java/epubcheck.jar. That's a Java program, and
the shell doesn't know how to run those. I figured out a workaround,
which is to invoke epubcheck as:
java -cp /usr/share/java/epubcheck.jar com.adobe.epubcheck.tool.Checker
<name of epub file to check>
(Assuming that Java is installed and in your path.)
The odd thing for me is that I see this bug was reported on 20.04, but
epubcheck worked for me on that release. I did a clean install of 22.04
in 2022, and epubcheck worked on that. A couple of weeks ago, I upgraded
to 24.04, and tried to run epubcheck for the first time on that release
today.
Output from apt-cache policy epubcheck -
epubcheck:
Installed: 4.2.6-2
Candidate: 4.2.6-2
Version table:
*** 4.2.6-2 500
500 http://gb.archive.ubuntu.com/ubuntu noble/universe amd64 Packages
500 http://gb.archive.ubuntu.com/ubuntu noble/universe i386 Packages
100 /var/lib/dpkg/status
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https://bugs.launchpad.net/bugs/1968437
Title:
Epubcheck binary does not execute
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