I have installed ubuntu 16.04 LTS.
I am trying to install neo4j but I am getting the following
W: GPG error: http://debian.neo4j.org/repo stable/ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 26C95CF201182252
W: The repository 'http://debian.neo4j.org/repo stable/ Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Reading package lists... Done
......What to do?