sub-process /usr/bin/dpkg return

The "sub-process /usr/bin/dpkg returned an error code" is a common error message in the context of package management in Linux systems. It usually indicates that there was an issue with the package manager (dpkg) while installing or removing a package.

To troubleshoot this issue, you can try the following steps:

1. Update and upgrade: Run the following commands to update the package lists and upgrade installed packages:

   sudo apt update
   sudo apt upgrade

2. Fix dependency issues: Sometimes, this error can occur due to unresolved dependencies. You can try running the following command to fix any dependency issues:

   sudo apt --fix-broken install

3. Clear package cache: The error can also occur if the package cache is corrupted. Clearing the cache might resolve the issue. Run the following command to clear the package cache:

   sudo apt clean

4. Remove problematic package: If the error message specifies a particular package that is causing the issue, you can try removing it using the following command:

   sudo apt remove <package-name>

5. Reconfigure dpkg: You can also try reconfiguring dpkg using the following command:

   sudo dpkg --configure -a

If none of the above steps resolve the issue, please provide more details about the specific error message you are encountering, and any other relevant information, so that I can assist you further.