Hello Gottfried, Gottfried writes: > my Lilypond manifest could not be updated. (since weeks) > Frescobaldi can’t be build. (python-poppler) > May be somebody know why? I also tried to build [1] frescobaldi and the build failed, but it was caused by python-pyportmidi-217 (see bug#63548) and not python-poppler Nevertheless, also the build of python-poppler-qt5 (/gnu/store/1jv6lwkfqpjy2jqifs3xjpp7xjz6sw7d-python-poppler-qt5-21.1.0.drv) is failing the same way you are reporting: [...] > /gnu/store/pzlvgglsbwjkgn9x25bfgni2836ch3i3-python-sip-4.19.25/bin/sip > -I /gnu/store/dy3xh053ahkhrp2jamggq8cpsyvp8mg0-python-3.10.7/share/sip > -t POPPLER_V21_01_0 -x QTXML_AVAILABLE -c > build/temp.linux-x86_64-cpython-310 -b > build/temp.linux-x86_64-cpython-310/poppler-qt5.sbf -I > > /gnu/store/7a5cx6yzn5i5cvqm5mg0138dyhy2jcgc-python-pyqt-5.15.9/share/sip > -n PyQt5.sip -t Qt_5_15_8 -t WS_X11 poppler-qt5.sip > sip: Unable to find file "QtCore/QtCoremod.sip" > > error: command > '/gnu/store/pzlvgglsbwjkgn9x25bfgni2836ch3i3-python-sip-4.19.25/bin/sip' > failed with exit code 1 > > error: in phase 'build': uncaught exception: [...] so I filed a new bug: #63549 Sorry I'm not able to propose patches for both packages. HTH! Gio' [1] "./pre-inst-env guix build frescobaldi" in a Guix checkout -- Giovanni Biscuolo Xelera IT Infrastructures