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Hello i have a problem with new update in ubuntu can someone help me i have this error 

~$ sudo apt-get update
Hit:1 http://si.archive.ubuntu.com/ubuntu bionic InRelease
Hit:2 http://si.archive.ubuntu.com/ubuntu bionic-updates InRelease             
Hit:3 http://si.archive.ubuntu.com/ubuntu bionic-backports InRelease           
Get:4 http://security.ubuntu.com/ubuntu bionic-security InRelease [83,2 kB]    
Get:5 https://dl.winehq.org/wine-builds/ubuntu bionic InRelease [4689 B]       
Err:5 https://dl.winehq.org/wine-builds/ubuntu bionic InRelease                
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 818A435C5FCBF54A
Reading package lists... Done
W: GPG error: https://dl.winehq.org/wine-builds/ubuntu bionic InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 818A435C5FCBF54A
E: The repository 'https://dl.winehq.org/wine-builds/ubuntu bionic InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
guiverc
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DJ84
  • 11

1 Answers1

1

Looks like you didn't import GPG keys when you added the winehq repository:

GPG error: https://dl.winehq.org/wine-builds/ubuntu bionic InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 818A435C5FCBF54A

Try importing them with this command:

wget -qO- https://dl.winehq.org/wine-builds/Release.key | sudo apt-key add -

and then do a sudo apt-get update.

The error should be gone.

Daniele Santi
  • 3,164