I am trying to upgrade my version of WordPress but I get this error:
Destination directory for file streaming does not exist or is not writable.
This is a read-write permission error. Fix this by changing the “wp-content” folder’s permissions to 755.
If this doesn’t work checked the wp-config.php file and if it’s not already defined, add
define('WP_TEMP_DIR', ABSPATH . 'wp-content/');