I am running into this same problem. I do have all permissions for my data base. When I changed my database name to include richm_wrdp1 this is the error message I received: Fatal error: Cannot redeclare check_admin_referer() (previously declared in /home/richm/public_html/wp-includes/pluggable-functions.php:228) in /home/richm/public_html/wp-admin/admin-functions.php on line 972
Then when I remove the richm_ from the database name I get the “Can’t select database
We were able to connect to the database server (which means your username and password is okay) but not able to select the wrdp1 database.” message.
Any help will be appreciated. Thanks!