# Error: You must install at least one postgresql-client- package The error message "You must install at least one postgresql-client-<version> package" indicates that while you have the `postgresql-client-common` package installed, you are missing the specific versioned client package required to utilize PostgreSQL client programs like `psql`, `pg_dump`, `pg_restore`, etc. This typically occurs on Debian-based systems like Ubuntu.

To resolve this issue, you need to install the appropriate PostgreSQL client package for your system. The simplest solution is to install the `postgresql-client` metapackage, which will automatically install the currently supported version of the PostgreSQL client for your distribution.

Here are the steps to fix this error: Update your package list.

Code

``` sudo apt update ```

install the postgresql-client metapackage.

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``` sudo apt install postgresql-client ```

This command will install the necessary version-specific `postgresql-client-` package along with any other dependencies required for the PostgreSQL client tools to function correctly.

If you specifically require a particular PostgreSQL client version (e.g., `postgresql-client-15`), you can install it directly:

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``` sudo apt install postgresql-client-15 ```

Replace `15` with the desired PostgreSQL version