W: GPG error: The following signatures were invalid: EXPIRED_
W: GPG error: The following signatures were invalid: EXPIRED
If your Ubuntu machine is throwing W: GPG error: The following signatures were invalid: EXPIRED, the system has flagged a fault identified as "W: GPG error: The following signatures were invalid: EXPIRED". Understanding the root cause helps you avoid an unnecessary reinstall.
What Actually Happened
Package manager encountered: the repository's signing key has passed its expiration date and needs to be refreshed.
Symptoms
APT command failed: 'W: GPG error: The following signatures were invalid: EXPIRED'
Common Causes
- Package state: the repository's signing key has passed its expiration date and needs to be refreshed
How to Fix It
-
01
Refresh package index:
sudo apt update -
02
Fix broken dependencies:
sudo apt --fix-broken install -
03
Configure pending packages:
sudo dpkg --configure -a
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Root Cause Breakdown
dpkg/APT constraint resolver aborted transaction.
Should You Worry?
Safe. Package manager halts to prevent further corruption.
Power-User Tip
Always run sudo apt update before attempting repair commands.
Always free