require_once(Google/Auth/AssertionCredentials.php): failed to open stream: No such file or directory

Question

I\'m trying to do a very simple:

require_once \'vendor/google/src/Google/Client.php\';
require_once \'vendor/google/src/Google/Service/Plus.php\';

Answer 1

Above didn't work for my WordPress plugin, but I managed to solve it like this:

In Client.php before require_once block add:

set_include_path( plugin_dir_path( __FILE__ ) . '../' );

Hope it helps.