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

问题

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';

...and I get this error:

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

Why?

I'm using the latest version available on https://github.com/google/google-api-php-client and seems that in Client.php each require_once uses a wrong path... or not?

Any help will be greatly appreciated!

Thanks a lot,
Niccolò

回答1:

For your problem you need to add the base directory of the library in the php 'include_path'.

Try putting this line of code before the require_once

set_include_path( get_include_path() . PATH_SEPARATOR . 'vendor/google/src' );

回答2:

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.

来源：https://stackoverflow.com/questions/20994928/require-oncegoogle-auth-assertioncredentials-php-failed-to-open-stream-no-su