I Get "gpg: no valid OpenPGP data found" error while importing google key

Question

Everything was working but suddenly stopped. I just didn't upgrade my Ubuntu 14.04 for two months. Now when I want to upgrade I get some errors.

First I run sudo apt-get update:

E: GPG error: http://dl.google.com stable InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?)

I search for a solution and found this, but now when I try to import the key, I get another error. While importing the key:

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -

I get this error:

gpg: no valid OpenPGP data found.

How to solve this problem?

Solution

The problem was due to the restriction in my country. As @remyseroos suggested me, I tried to open the URL (https://dl-ssl.google.com/linux/linux_signing_key.pub) in my browser and I found out it's not loading properly.

So I just used a proxy and problem solved!

Comments

[radriaanse]

What's your GnuPG version? check with gpg --version

[Omid]

@remyseroos gpg (GnuPG) 1.4.16

[radriaanse]

Can you see the key if you just go to the url from your browser?

[Omid]

@remyseroos Oh, No! I can't see it. Thank you man. Solved!

[radriaanse]

np, Can you please write out your solution/finding as an answer, and mark it solved?

[Afshar Mohebi]

My problem too. Which proxy you used?

[Omid]

@afsharm Any VPN service should work.