Hızlı yanıt: kod örneği
stackoverflow.com gpg-no-valid-openpgp-data-found
This problem might occur if you are behind corporate proxy and corporation uses its own certificate. Just add "--no-check-certificate" in the command.
e.g.
It works.
If you want to see what is going on, you can use verbose command instead of quiet before adding "--no-check-certificate" option.
e.g.
This will tell you to use "--no-check-certificate" if you are behind proxy.
wget --no-check-certificate -qO - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -
wget -vO - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -