I just installed XAMPP 5.5.27-1 on OS X.
As part of the install you get user manuals. From the leading page: http://localhost/dashboard/howto.html ...I chose "Backup and Restore mySQL Databases" which goes here: http://localhost/dashboard/docs/backup-restore-mysql.html
On this page there are a number of references to: http://localhost/phpMyAdmin
This is a broken link and will lead to an "Object not found" error.
The correct URL is: http://localhost/phpmyadmin (no caps).
I can't seem to find out how to contact the right person to get this fixed.