How to Test

In order to run a test on QT/QML environment, You need to some settings in advance.

1. QT Installation

You need to install QT on your machine first. Qt Downloads
To run Qt 6.0+ on Linux machine, The Ubuntu version requires 20.04. link.

2. Modify qt/build.properties file

When you checkout iLib sources, Default values in qt/build.properties is QTBIN=/opt/qt55/bin.
If you install different locations, You need to modify this file.

Additional Information

If your machine still doesn’t point QT where you want, Please modify default.conf the following way.

qtchooser: a wrapper used to select between Qt development binary versions

a. Check current system status first by qtchooser command

> qtchooser –print-env

b. Modify defult.conf It’s a system-wide configuration file. If it is provided, the settings from it will be automatically used in case nothing else is selected.

> sudo vi /usr/lib/x86_64-linux-gnu/qtchooser/default.conf

i.e)

/home/goun/Qt_6.3/6.3.0/gcc_64/bin
/home/goun/Qt_6.3/6.3.0/gcc_64

You need to check LD_LIBRARY_PATH and QT_PLUGIN_PATH. You could set options in ~/.bashrc file.
i.e)

export LD_LIBRARY_PATH=/home/goun/Qt_6.3/6.3.0/gcc_64/lib
export QT_PLUGIN_PATH=/home/goun/Qt_6.3/6.3.0/gcc_64/plugins

4. Run Qt/QML Test by executing ant

Executing the below command under qt/ directory.
The difference between the two test commands is whether JS files are minified or not.

> ant test.all
or
> ant test.all.compiled

Trouble Shooting

case 1)

If you faced an error as below,

- cannot find -lGL `  
- /usr/bin/ld: cannot find -lpgm

You might need to install the packages below:

 > sudo apt-get install libnetpbm10-dev
 > sudo apt-get install libglu1-mesa-dev

case 2)

When you faced errors as below,

/bin/qmlscene: relocation error: symbol _ZN10QQmlEngine4exitEi, version Qt_5 not defined in file libQt5Qml.so.5 with link time reference

Failed to load platform plugin ”xcb“

You might need to check LD_LIBRARY_PATH. I’ve set that option in ~/.bashrc file.

export LD_LIBRARY_PATH=/home/goun/Qt5.9.0/5.9/gcc_64/lib