Error WARNING: APT: The following signatures were invalid in Debian 11
Welcome, dear readers, to the pages of our blog. Today we want to talk about a common error that Debian 11 users may encounter when installing software. We are talking about the error WARNING: APT: The following signatures were invalid. Let’s figure this out together.
When installing packages on Debian 11, you may encounter an error message stating that package signatures were invalid. This can happen for several reasons, such as problems with GPG keys or repository updates. But don’t worry, we have a solution for you.
How to fix the error WARNING: APT: The following signatures were invalid?
To fix this error, you need to follow a few simple steps. Here’s what you need to do:
- Open the terminal
- Enter the command
sudo apt updateto update the package list - Then run the command
sudo apt cleanto clear the downloaded package cache - Next, enter the command
sudo apt update --fix-missingto fix missing packages - Finally, update the system by running the command
sudo apt upgrade
After completing these steps, try installing the package you need again. In most cases, this fixes the problem with invalid signatures, and you will be able to successfully install the necessary software.
We hope that our article was helpful for you. Now you know how to fix the error WARNING: APT: The following signatures were invalid in Debian 11. Thank you for your attention and good luck working with your system!
