When PHPUnit has been installed on a high PHP version, some of the dependencies of PHPUnit will now be installed in versions not compatible with PHP 7.4, which blocks the install of the Coveralls package.
Removing PHPUnit before installing PHP Coveralls should fix it.
I just wish PHP Coveralls would finally release a version compatible with PHP > 8.0....
Grrr....
When PHPUnit has been installed on a high PHP version, some of the dependencies of PHPUnit will now be installed in versions not compatible with PHP 7.4, which blocks the install of the Coveralls package.
Removing PHPUnit before installing PHP Coveralls should fix it.
I just wish PHP Coveralls would finally release a version compatible with PHP > 8.0....