gd library extension not available with this php installation
The GD Graphics Library is for dynamically manipulating images. For Ubuntu
you should install it manually:
1. check your php version : php -v
2. Run one of the command according to your php verison
PHP5: sudo apt-get install php5-gd
PHP7.0: sudo apt-get install php7.0-gd
PHP7.1: sudo apt-get install php7.1-gd
PHP7.2: sudo apt-get install php7.2-gd
PHP7.3: sudo apt-get install php7.3-gd
PHP7.4: sudo apt-get install php7.4-gd
3. Thats all, you can verify that GD support loaded:
php -i | grep -i gd
Output should be like this:
GD Support => enabled
GD headers Version => 2.1.1-dev
gd.jpeg_ignore_warning => 0 => 0
4. Restart your apache service :
sudo service apache2 restart