Build fails on Ubuntu 20.04 with qmlvtkplugin error: QQmlComponent: Component is not ready

[UshioNoa-hub]

Description

I am trying to build PlusBuild on Ubuntu 20.04 LTS following the official Linux build instructions. The build fails during the VTK compilation step with a qmlvtkplugin error.

Environment

• OS: Ubuntu 20.04.6 LTS
• GCC: 9.4.0
• Qt: 5.12.8
• CMake: 3.16.3
• PlusBuild: latest master branch

Steps to Reproduce

sudo apt update && sudo apt install git build-essential cmake
qt5-default qtmultimedia5-dev qttools5-dev libqt5xmlpatterns5-dev
qtbase5-private-dev libqt5x11extras5-dev libxt-dev

git clone https://github.com/PlusToolkit/PlusBuild.git
mkdir PlusBuild-bin
cd PlusBuild-bin
cmake ../PlusBuild -DCMAKE_CXX_STANDARD:STRING=17
make -j$(nproc)

Actual Behavior (Error Log)

The build progresses to about 95% and then fails with the following error:

[ 95%] Linking CXX shared module ../../../lib/qml/VTK.9.1/libqmlvtkpluginD.so
Generating qmltypes file using qmlplugindump
QQmlComponent: Component is not ready
make[5]: *** [GUISupport/QtQuick/qml/CMakeFiles/qmlvtkplugin.dir/build.make:135: lib/qml/VTK.9.1/libqmlvtkpluginD.so] Error 3
make[5]: *** Deleting file 'lib/qml/VTK.9.1/libqmlvtkpluginD.so'
make[4]: *** [CMakeFiles/Makefile2:12297: GUISupport/QtQuick/qml/CMakeFiles/qmlvtkplugin.dir/all] Error 2
make[3]: *** [Makefile:130: all] Error 2
make[2]: *** [CMakeFiles/vtk.dir/build.make:112: vtk-prefix/src/vtk-stamp/vtk-build] Error 2
make[1]: *** [CMakeFiles/Makefile2:556: CMakeFiles/vtk.dir/all] Error 2
make: *** [Makefile:95: all] Error 2