Failed compilation under Linux Mint 20

[SoloBSD]

$ sudo QT_SELECT=qt5 qmake && make -j$(nproc) Updating '/home/memo/tarsnap-gui/resources/translations/tarsnap-gui_en.qm'... Removing translations equal to source text in '/home/memo/tarsnap-gui/resources/translations/tarsnap-gui_en.qm'... Generated 0 translation(s) (0 finished and 0 unfinished) Ignored 681 untranslated source text(s) Updating '/home/memo/tarsnap-gui/resources/translations/tarsnap-gui_ro.qm'... Removing translations equal to source text in '/home/memo/tarsnap-gui/resources/translations/tarsnap-gui_ro.qm'... Generated 591 translation(s) (328 finished and 263 unfinished) Ignored 87 untranslated source text(s) /usr/lib/qt5/bin/uic forms/aboutwidget.ui -o build/gui/ui_aboutwidget.h /usr/lib/qt5/bin/uic forms/archivelistwidgetitem.ui -o build/gui/ui_archivelistwidgetitem.h Could not create output file make: [Makefile:1325: build/gui/ui_aboutwidget.h] Error 1 make: Waiting for unfinished jobs.... Could not create output file make: *** [Makefile:1334: build/gui/ui_archivelistwidgetitem.h] Error 1

[SoloBSD]

Solved doing

$ sudo QT_SELECT=qt5 qmake $ sudo make -j$(nproc)

[gperciva]

Thanks for the update! sudo isn't recommended for compiling, for precisely this type of reason. The usual set of commands would be

QT_SELECT=qt5 qmake
make
sudo make install

with sudo on only the last command.