Install Synaptic in Terminal with.
Code: Select all
sudo apt-get -y install synaptic
Use the search to find gambas3
Mark gambas3 for installation and accept all the other files suggested.
Scroll down the list and check all the gambas3 files not already selected for installation and set them for installation.
Click on 'Apply'.
Once all the files are installed close Synaptic and launch Gambas3.
EDIT 09/06/2020
This is easier, simply run the following in Terminal.
sudo apt-get -y install gambas3 gambas3-gb-form-print gambas3-gb-gtk-opengl gambas3-gb-gtk3 gambas3- gb-gui-opengl gambas3-gb-gui-qt gambas3-gb-gui-qt-webkit gambas3-gb-gui-trayicon gambas3-gb-libxml gambas3-gb-option gambas3-gb-report gambas3-gb-sdl gambas3- gb-sdl-sound gambas3-gb-v4l gambas3-templates