Comment 3 for bug 1756275

Thank you for taking the time to file a bug report.

Per the log message above, the mysql install has failed because you are
attempting to downgrade the version. If you really do wish to do this, then
follow the steps in the message to force the downgrade. However, be warned
this may cause unexpected behavior.

Since it seems likely to me that this is a local configuration problem,
rather than a bug in Ubuntu, I am marking this bug as 'Incomplete'.

However, if you believe that this is really a bug in Ubuntu, then we would
be grateful if you would provide a more complete description of the problem
with steps to reproduce, explain why you believe this is a bug in Ubuntu
rather than a problem specific to your system, and then change the bug
status back to "New".

For local configuration issues, you can find assistance here:
http://www.ubuntu.com/support/community