I recently upgraded to MySQL 5.7.9 from having previously used 5.5 (by removing the old mysql and installing the new one). Now when I run a PHP script (which used to work), I get this error:
Warning: mysqli::mysqli(): (HY000/1524): Plugin '*8CC466EE1F3C4B48CF50D1E337EE808AC922A16E' is not loaded in...
Any idea how to fix this?
As it turned out, in my case, the user record in the mysql.users table didn't have the full grant privileges and was causing this error.
I had same situation. I removed that user and added it back with same privileges and the error was gone and all works now.