EDIT – there was an errant filter somewhere else in this code base that was causing this issue. My bad. Unfortunately it doesn’t look like we can delete or edit our own posts here so maybe an admin can kill this thread.
I just downloaded the Beta and that still doesn’t work.
Edit – You’ll need to add a filter to get the key in:
add_filter('acf/settings/google_api_key', function () {
return 'your-api-key';
});
Credit goes to aaemnnosttv
I am getting the same error, but I am using ACF Pro 5.1.8 and WordPress 4.4.2. Has this been fixed in the latest version yet?