PHP stream_socket_client() Warning

Question

I am building a new WordPress site for a client and all of a sudden today I am seeing this error at the top of the screen. I have never seen this before. Any ideas what could be causing this to happen now? Also how to fix it?

Warning: stream_socket_client(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/wp-includes/class-http.php on line 787

Warning: stream_socket_client(): unable to connect to tcp://www.MY-DOMAIN.com:80 (php_network_getaddresses: getaddrinfo failed: Name or service not known) in /var/www/wp-includes/class-http.php on line 787

Answer 1

Not sure if you are using a VM but when I had this error I resolved it by adding an entry to my hosts file in my vagrant machine that pointed back to localhost.

127.0.0.1 www.MY-DOMAIN.com