Error upon installation of plugins

[michaelbeil]

I receive the following error when installing recommended plugins:

Declaration of Automattic_Developer_Empty_Upgrader_Skin::request_filesystem_credentials() should be compatible with WP_Upgrader_Skin::request_filesystem_credentials($error = false, $context = false, $allow_relaxed_file_ownership = false) in /vagrant/content/plugins/developer/includes/class-empty-upgrader-skin.php on line 5