Fatal error: Call to undefined method wpdb::esc_like()

I’m moving my site from a local host to Hostmonster. I’ve been having troubles with that, but that’s another issue. What I’ve decided to do is just set up a new WP installation on Hostmonster and do an export/import.

The problem is, I can’t log into the site on my local host. I think since updating it to 4.0. I know the admin/password is correct. Here’s the error I get:

Fatal error: Call to undefined method wpdb::esc_like() in C:\Xammp\htdocs\wp\wp-includes\canonical.php on line 527

I checked the canonical.php file, line 527526- and it says:

if ( get_query_var(‘name’) ) {
$where = $wpdb->prepare(“post_name LIKE %s”, $wpdb->esc_like( get_query_var(‘name’) ) . ‘%’);

So I’ve tried:

-Turning off the theme and plugins.
-Creating a new user.
-Replacing the wp-includes and wp-admin folders.

I know it has something to do with the WordPress update and how it works with “esc_like”

I’ve read this but have no idea what any of it means.

All I need to do is log in and get an export file. Is there a way of doing that without logging in? Can anyone help me out with this?