Widgets component is not recognized in CMakeList file

[Milosz]

Hi everyone,
I have newly created virtual machine (VBox) and Ubuntu 20.04.
I have installed Qt and QtCreator.
I can't build my first application. The error appears in CMakeList file in line:

find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Widgets REQUIRED)

The error description is like that:
Found package configuration file: /home/xxx/Qt/6.0.4/gcc_64/lib/cmake/Qt6/Qt6Config.make but it set Qt6_FOUND to FALSE so package "Qt6" is considered to be NOT FOUND. Reason given by package: Failed to find Qt component "Widgets" config file at""

Can anyone help me?
Thanks in advance

Best Regards
Milosz

[Milosz]

The problem is solved. I had to install libgl1-mesa-dev

Best
Milosz