curl: (35) gnutls_handshake() failed: Error in the pull function error on docker installation

Hi everyone,
If you get curl: (35) gnutls_handshake() failed: Error in the pull function. error on docker installation and if you removed older and fewer versions before you just have to remove old ppa from your hosts /etc/apt/sources.list

For do this open /etc/apt/sources.list with vi, nano etc. and comment all deb source lines by adding # character to start of line. You can also see example of comment in file.

After remove or comment source you have to apt-get update to apply changes and you can install docker version what if you want!

good luck