phpunit configuration file did not pass validation

[marioquartz]

PHPUnit 8.5.21 by Sebastian Bergmann and contributors.

Warning - The configuration file did not pass validation! The following problems have been detected:

Line 15:

• Element 'coverage': This element is not expected.

I cloned the repository and when do the tests with command "vendor/bin/phpunit" this error appears. But not stops the tests. And they are passed.

[melbahja]

phpunit 8.5 it only version i've found that can runs on php 7 and php 8. if we upgrade to phpunit v9 we should drop php 7 support