package mysql-server-5.7 (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1

[piku]

I can't download my sql and mariadb .At the time of installation it makes problem.

ProblemType: Package
DistroRelease: Ubuntu 17.04
Package: mysql-server-5.7 (not installed)
ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8
Uname: Linux 4.10.0-20-generic x86_64
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
Date: Thu May 11 02:10:41 2017
ErrorMessage: subprocess new pre-installation script returned error exit status 1
InstallationDate: Installed on 2017-04-24 (16 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
RelatedPackageVersions:
 dpkg 1.18.10ubuntu2
 apt 1.4
SourcePackage: mysql-5.7
Title: package mysql-server-5.7 (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Joshua Powers (powersj)]

From terminal log:

Aborting downgrade from (at least) 10.1 to 5.7.
If are sure you want to downgrade to 5.7, remove the file
/var/lib/mysql/debian-*.flag and try installing again.
dpkg: error processing archive /tmp/apt-dpkg-install-CyIjq6/4-mysql-server-5.7_5.7.18-0ubuntu0.17.04.1_amd64.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1

[Joshua Powers (powersj)]

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

[Launchpad Janitor (janitor)]

[Expired for mysql-5.7 (Ubuntu) because there has been no activity for 60 days.]