With every update of ImpressPages 4 I receive the following error message:
Update has failed: rmdir(/pathtomyinstallation/tmp/update/extracted//Ip/lnternal/Vendor/Zend/I18n/Validator/PhoneNumber) [http://ch2.php.net/manual/en/function.rmdir.php'>function.rmdirphp]: Directory not empty in /pathtomyinstallation/Ip/Internal/Update/Helper/FiIeSystem.php:129{‘status':'success'}
Despite this error message the update works.