failed opening required phpunit framework php

We just receive emails about failed opening required phpunit framework php error. The error may appear when try to run phpunit.bat. You will see something similar with this: Warning: require_once(PHPUnit/Util/Filter.php): failed to open stream: No such f ile or directory in C:\wamp\php\phpunit on line 44 Fatal error: require_once(): Failed opening required 'PHPUnit/Util/Filter.php' ( include_path='.;C:\php5\pear') in [...]

Source: http://blog.pcnews.ro/2011/02/23/failed-opening-required-phpunit-framework-php/

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