I need help with building plasma-bigscreen. its throwing Exec format error when trying to execute qhelpgenerator during the extra-cmake-modules. What’s weird is it was able to get through that before I corrected the Qt path in .config but now it can’t.
I’m on Raspberry Pi OS Lite on a Raspberry Pi 5
meven
September 6, 2026, 7:05am
2
Can you share more details, like the full error, it probably mentions a file.
Did you try a clean build ? kde-builder --refresh-build
–refresh-build didn’t help
the full log it spat out was:
# kde-builder runing: 'cmake' '--build' '.'
# from directory: home/hhmc/kde/build/extra-cmake-nodules
# with environment: home/hhmc/kde/build/extra-cmake-modules/kde-builder.env
[1/3] sphinx-build html: see /hone/hhmc/kde/build/extra-cmake-modules/docs/build-html.log
[2/3] sphinx-build man: see /hone/hhnc/kde/bui ld/extra-cnake-nodules/docs/build-man. log 13/31 sphinc-build qthelp: see hone/hhnc /kde/build/extra-cnake-nodules/docs/bulld-qthelp.log
FAILED: docs/doc_format_qthelp home/hhmc/kde/build/extra-cmake-nodules/docs/doc_format_qthelp
cd home/hhmc/kde/build/extra-cmake-modules/docs && /usr/bin/sphinx-build -D man_make_section_directory=0 -c /homa/hhmc/kde/build/extra-cmake-modules/docs -d /home/hhmc/kde/build/extra-cmake-modules/docs/doctrees -b qthelp /home/hhmc/kde/src/extra-cmake-modules/docs /home/hhmc/kde/build/extra-cmake-modules/docs/qthelp > build-qthelp.log && home/hhmc/Qt/6.9.3/gcc_64/libexec/qhelpgenerator /hone/hhmc/kde/build/extra-cmake-modules/docs/qthelp/ExtraCMakeModules.qhcp
bin/sh: 1: /home/hhmc/Qt/6.9.3/gcc_64/libexec/qhelpgenerator: Exec format error ninja: build stopped: subcommand failed.
exit code was: 256