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I want to build a Qt5 example on my desktop machine. I installed qt5-default and qtdeclarative5-dev, but I'm still getting this error:
Project ERROR: Unknown module(s) in QT: quick qml
Which package should be installed for compiling? In the Qt4 times it was simply libqt4-dev
List of all Qt5 developement packages, available on Ubuntu.
Qt module dev package lib package ------------------------------------------------------------------------- bluetooth qtconnectivity5-dev libqt5bluetooth5 concurrent qtbase5-dev libqt5concurrent5 connectivity qtmobility-dev libqtconnectivity1 contacts qtmobility-dev libqt5contacts5 core qtbase5-dev libqt5core5a dbus qtbase5-dev libqt5dbus5 designer qttools5-dev libqt5designer5 designercomponents qttools5-dev libqt5designercomponents5 feedback qtmobility-dev libqt5feedback5 gallery qtmobility-dev libqtgallery1 gui qtbase5-dev libqt5gui5 help qttools5-dev libqt5help5 location qtmobility-dev libqt5location5 multimedia qtmultimedia5-dev libqt5multimedia5 multimediakit qtmobility-dev libqtmultimediakit1 network qtbase5-dev libqt5network5 networkauth libqt5networkauth5-dev libqt5networkauth5 nfc qtconnectivity5-dev libqt5nfc5 opengl libqt5opengl5-dev libqt5opengl5 organizer qtmobility-dev libqt5organizer5 positioning qtpositioning5-dev libqt5positioning5 printsupport qtbase5-dev libqt5printsupport5 publishsubscribe qtmobility-dev libqt5publishsubscribe5 qml qtdeclarative5-dev libqt5qml5 quick qtdeclarative5-dev libqt5quick5 quickparticles qtdeclarative5-dev libqt5quickparticles5 quicktest qtdeclarative5-dev libqt5quicktest5 quickwidgets qtdeclarative5-dev libqt5quickwidgets5 script qtscript5-dev libqt5script5 scripttools qtscript5-dev libqt5scripttools5 sensors qtmobility-dev, libqt5sensors5-dev libqt5sensors5 serialport libqt5serialport5-dev libqt5serialport5 serviceframework qtmobility-dev libqt5serviceframework5 sql qtbase5-dev libqt5sql5 svg libqt5svg5-dev libqt5svg5 systeminfo qtmobility-dev libqt5systeminfo5 test qtbase5-dev libqt5test5 uitools qttools5-dev ? versit qtmobility-dev libqtversit1 webchannel ? ? webkit libqt5webkit5-dev libqt5webkit5 websockets libqt5websockets5-dev libqt5websockets5 widgets qtbase5-dev libqt5widgets5 x11extras libqt5x11extras5-dev libqt5x11extras5 xml qtbase5-dev libqt5xml5 xmlpatterns libqt5xmlpatterns5-dev libqt5xmlpatterns5
/usr/bin/ld: cannot find -lQt5::Help. That kind of failure mode seems to be typical for cmake.
Jul 11, 2016 at 20:58
apt remove wine* deleted all packages containing the substring win in it. Be extremely careful with this.
Sep 19, 2017 at 12:45
You need to install
qtdeclarative5-dev
qtdeclarative5-dev. Can you edit the answer body and add it, please?
The answer to the title is:
sudo apt-get install qtbase5-dev
For your specific problem, the answers above are correct, though.
You can obtain the list of all Qt development packages to choose from with this command:
apt list "libqt5*-dev" "qt*-dev"
It will show the packages available in your current Ubuntu repositories based on the package names for development packages that can be observed in the answer by @gossen. For details about the command and similar commands, see here.
apt list "libqt5*-dev" "qt*5-dev"
sudo apt-get install qtdeclarative5-dev qml-module-qtquick-controls
Validate the installation, through::
qtchooser -print-env
Output might resemble as follows (based on package available for your Ubuntu version):
QT_SELECT="default"
QTTOOLDIR="/usr/lib/x86_64-linux-gnu/qt5/bin"
QTLIBDIR="/usr/lib/x86_64-linux-gnu"
Reference here.
