How to fix the sub-process /usr/bin/dpkg returned an error code (2)?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

The error code 2 for sub-process /usr/bin/dpkg indicates that the process failed to complete successfully. This is likely due to an issue with the dpkg package itself, or with one of the dependencies required by dpkg. Try running apt-get update and upgrading to the latest version of dpkg before retrying the operation that caused this error. If the problem persists, you may need to file a bug report with the Ubuntu developers.

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1. Check the system logs for clues as to what might be causing the error

  1. Check if the system is running out of disk space. If so, consider freeing up some space by deleting unneeded files or folders.
  2. Check the system's kernel log for any errors or warnings.
  3. Check the system's logfiles for any indications of problems with packages.
  4. Check the system's /var/log/messages file for any indications of problems.
  5. Check the system's /var/log/syslog file for any indications of problems.

2. Try running the command again with sudo

To fix the problem and have the command run as sudo, you would need to enter the following command: sudo dpkg -i <file>

3. If the problem persists, try running apt-get update and then try installing the package again

To try and fix the problem with the dpkg sub-process, the first thing that needs to be done is to try and update the package. To do this, the user will need to run the apt-get update command. This command will look through the package database and try to update any of the packages that are currently installed on the system. If the problem still persists, then the user will need to install the package again. This can be done by running the apt-get install command. This command will try to install the package that is currently flagged as being problematic on the system.