Hi Everyone,

I'm working on Kubuntu 20.04.03, x86_64, fully patched. I'm trying to develop a C++ application using KDevelop and Qt. The build is failing with the message:

    Could not find a package configuration file provided by "Qt5Qml" ...

I installed the following packages:

$ history | grep 'apt-get install'
   18  sudo apt-get install emacs-nox
    ...
  101  sudo apt-get install kdevelop
  102  sudo apt-get install --yes cmake
  103 sudo apt-get install qtbase5-dev

At (103), qtbase5-dev was already installed. I'm not sure what brought it in since it does not appear to be a direct dependency of kdevelop.

According to https://forum.kde.org/viewtopic.php?f=305&t=142524#p384573 , the missing package was qtdeclarative5-dev. Indeed, looking at the output of 'apt-cache show kdevelop', qtdeclarative5-dev is missing. After manually installing qtdeclarative5-dev the build problem was fixed.

It appears the Apt KDevelop recipe should install qtdeclarative5-dev, too.

Including qtdeclarative5-dev as a dependency for kdevlop will help things "just work" for folks. It will save folks from the surprise and hunting down the missing package.

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.13.0-28-generic
OS Type: 64-bit
Processors: 12 × Intel® Core™ i7-8700 CPU @ 3.20GHz
Memory: 62.5 GiB of RAM

==========

$ apt-cache show kdevelop
Package: kdevelop
Architecture: amd64
Version: 4:5.5.0-2
...
Depends: kdevelop-data (>= 4:5.5.0-2), kdevelop55-libs (= 4:5.5.0-2), kinit, qml-module-qtquick-controls, qml-module-qtquick-layouts, qml-module-qtquick-window2, qml-module-qtquick-xmllistmodel, qml-module-qtquick2, qml-module-qtwebkit, kio, libapr1 (>= 1.2.7), libaprutil1 (>= 1.2.7+dfsg), libastyle3, libc6 (>= 2.29), libclang1-9 (>= 1:6.0~svn321745-1~), libgcc-s1 (>= 3.0), libgrantlee-templates5 (>= 5.0.0), libkasten4controllers0 (>= 5:0.26.2), libkasten4core0 (>= 5:0.26.2~), libkasten4okteta2controllers0 (>= 5:0.26.2), libkasten4okteta2core0 (>= 5:0.26.2~), libkasten4okteta2gui0 (>= 5:0.26.2~), libkf5archive5 (>= 4.96.0), libkf5bookmarks5 (>= 4.96.0), libkf5codecs5 (>= 4.96.0), libkf5completion5 (>= 4.97.0), libkf5configcore5 (>= 4.98.0), libkf5configgui5 (>= 4.97.0), libkf5configwidgets5 (>= 4.96.0), libkf5coreaddons5 (>= 5.16.0), libkf5crash5 (>= 5.15.0), libkf5declarative5 (>= 5.45.0), libkf5guiaddons5 (>= 4.96.0), libkf5i18n5 (>= 4.97.0), libkf5iconthemes5 (>= 4.96.0), libkf5itemmodels5 (>= 4.96.0), libkf5itemviews5 (>= 4.96.0), libkf5jobwidgets5 (>= 4.96.0), libkf5kiocore5 (>= 4.96.0), libkf5kiofilewidgets5 (>= 4.96.0), libkf5kiowidgets5 (>= 5.33.0), libkf5newstuff5 (>= 5.27.0), libkf5parts5 (>= 4.96.0), libkf5purpose-bin, libkf5purpose5 (>= 1.1), libkf5service-bin, libkf5service5 (>= 4.99.0), libkf5sonnetui5 (>= 4.96.0), libkf5texteditor5, libkf5textwidgets5 (>= 4.96.0), libkf5threadweaver5 (>= 4.98.0), libkf5widgetsaddons5 (>= 4.96.0), libkf5xmlgui-bin, libkf5xmlgui5 (>= 4.96.0), libkomparediff2-5 (>= 4:14.12.50), libokteta3core0 (>= 5:0.26.2~), libokteta3gui0 (>= 5:0.26.2~), libprocesscore7 (>= 4:5.3.0), libprocessui7 (>= 5.2.50+git), libqt5core5a (>= 5.12.2), libqt5dbus5 (>= 5.7.0), libqt5gui5 (>= 5.11.0~rc1) | libqt5gui5-gles (>= 5.11.0~rc1), libqt5help5 (>= 5.6.0~beta), libqt5network5 (>= 5.7.0), libqt5qml5 (>= 5.0.2), libqt5quick5 (>= 5.9.0~beta) | libqt5quick5-gles (>= 5.9.0~beta), libqt5quickwidgets5 (>= 5.11.0), libqt5widgets5 (>= 5.12.2), libqt5xml5 (>= 5.7.0), libstdc++6 (>= 9), libsvn1 (>= 1.8)
Recommends: clang-9, g++, gcc, gdb (>= 7.0), kapptemplate, kio-extras, make
Suggests: clang, clang-tidy, clazy, cmake, cppcheck, git, heaptrack, kdevelop-l10n, konsole, meson, ninja-build
Breaks: kdevplatform10-libs (<< 5.2)
Replaces: kdevplatform10-libs (<< 5.2)
Filename: pool/universe/k/kdevelop/kdevelop_5.5.0-2_amd64.deb
Size: 3047692
MD5sum: 89639866cce82cccabaa230aa1c1bd7a
SHA1: 4279cf1320c53b1a8fcb1dce97d74efb63d344f3
SHA256: fec78ad98793cf1cf122651ec32573b76d872ca96650d4128553a1460ae68560
Homepage: https://www.kdevelop.org/
Description-en: integrated development environment for C/C++ and other languages
...