I updated several sites to 3.6 today and one of them is giving me issues. After pressing the Update button inside the Dashboard it starts to download 3.6 and then spits out the following error:
Fatal error: Call to undefined function wp_safe_remote_get() in /usr/home/romein/domains/buurtcentrumderomein.nl/public_html/darts/wp-admin/includes/file.php on line 500
I checked file.php and like 500 is the following:
$response = wp_safe_remote_get( $url, array( 'timeout' => $timeout, 'stream' => true, 'filename' => $tmpfname ) );
I have several wordpress installs on this server and this is the only one that is giving me issues. The site which works fine as it but won't update is http://darts.buurtcentrumderomein.nl
Could anyone tell me what this error means. Is it perhaps possible that is has something to do with file permissions, since I had to tinker with them on this install in the past. If so is there an easy way to check if and what is wrong with the permissions?