gpg: no valid OpenPGP data found

I am trying to install Jenkins on Ubuntu 13.10 and I am getting the above mentioned error when i try to run the following command:

wget -q -O - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -

Solution 1:

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. wget --no-check-certificate -qO - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -

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. wget -vO - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add - This will tell you to use "--no-check-certificate" if you are behind proxy.

Solution 2:

Managed to resolve it. separated the command in to two commands and used directly the file name which was downloaded example -

wget -q -O - https://pkg.jenkins.io/debian/jenkins-ci.org.key | sudo apt-key    add -

can be separated into

1. wget -q -O - https://pkg.jenkins.io/debian/jenkins-ci.org.key
2. sudo apt-key add jenkins-ci.org.key