mysqldump Error 1045 Access denied despite correct passwords etc

Question

This is a tricky one, I have the following output:

mysqldump: Got error: 1045: Access denied for user \'root\'@\'localhost\' (using password: YES) when tr

Answer 1

mysqldump -h hostname -u username -P port -B database --no-create-info -p > output.sql

I think you should specify the args