phpunit coverage-unit doesn't generate reports - phpunit

Hi everybody,
i have some problem with phpunit coverage html component.
I installed correctly components and launch command:
vendor/bin/phpunit --coverage-html tests
Tests works correctly, but no html reports generated. Attached the terminal result.
The classic "Generating code coverage report in HTML format ... done" doesn't appear.
Can you help me?
Thanks

The error message reads "No code coverage driver is available". Your PHP environment is missing Xdebug or PCOV.

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On Linux: /home/[username]/.composer/vendor/autoload.php
Or point it to the autoloader of your composer project
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It looks like phpunit colorizes its output. Could that be the problem? Make sure not to run it with --colors

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