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I am trying to install postgresql in ubuntu 20.04, but facing unment dependicies issue.

You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
libmysqlclient21 : Depends: mysql-common (>= 8.0.25-1ubuntu20.04) but 5.8+1.0.5ubuntu2 is to be installed
Depends: mysql-community-client-plugins (= 8.0.25-1ubuntu20.04) but it is not installable
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

After these error, i run sudo apt--fix-broken installbut, i facing same issue again.

Saad Arshad
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    What do you mean you tried to install postgresql via wget? Use apt to install postgresql. – paladin Jun 24 '21 at 08:02
  • Are you trying to install PostgreSQL or MySQL? Your question says one, but the error says another. Did a previous attempt to install MySQL fail and now you're trying to put PostgreSQL on the machine? – matigo Jun 24 '21 at 08:14
  • @matigo, yes you right,first i am trying to install mysql but facing dependicies issue, then i decide to install postgresql,and also facing same issue. – Saad Arshad Jun 24 '21 at 08:26
  • The issue with the MySQL installation is that packages from two very different versions are being installed. You may want to address the MySQL situation first, *then* approach the PostgreSQL installation. – matigo Jun 24 '21 at 08:32
  • i have tried many solutions but no one worked,now i did not understand, how to solve it. – Saad Arshad Jun 24 '21 at 08:35
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    Please add the output of `apt-cache policy libmysqlclient21 mysql-common mysql-community-client-plugins` to the question by [editing it](https://askubuntu.com/posts/1347884/edit). – N0rbert Jun 24 '21 at 11:50

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