I'm glad to have helped you. Your last issue is not Ubuntu 20.04 I think. I never had that issue, so probably something on your system for this one. And I have build usermanual quite few times these last 2 days (on Ubuntu 20.04) to work on it and propose updates.

About why it worked better before 20.04, I have one hypothesis: python 2 end of life support. gnome-doc-utils use python 2 (python-libxml2 2.7).


Le 30/08/2020 à 12:14, Peter Harde a écrit :
Hi Nicolas,

thank you for the hint. Installed missing libavalon-framework-java (no idea why it has been removed at upgrade) and gnome-doc-utils from 18.04 via gdebi. gdebi found the dependency (python-libxml2) and installed it automatically.

Building the application still worked fine, but trying to build the manual I now got:

[100%] Building usermanual
Making portrait pages on A4 paper (210mmx297mm)
Exception in thread "main" java.lang.NoSuchMethodError: java.nio.CharBuffer.limit(I)Ljava/nio/CharBuffer; ..

I additionally had to alter the JAVA_HOME environment variable, it pointed to a oracle-java-8 JRE. Pointing to openjdk-11 JRE now did the trick. Again I have no idea why the identical configuration (JAVA_HOME pointing to Java-8) worked on 18.04 but not on 20.04. Thank you very much, once again, for your support.

Peter Harde

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