← All Kali Issues
apt
Repository is not signed
P Package
High
🔴 Error Message
E: The repository is not signed
📖 What This Means
GPG key for repository is missing or not trusted.
🔧 Step-by-Step Fix
- Add key: sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys KEYID
- Or download: wget -qO - URL | sudo apt-key add -
- Update keyring: sudo apt install kali-archive-keyring