The command "sudo -E apt-get -yq --no-install-suggests --no-install-recommends $(travis_apt_get_options) install google-chrome-stable fluxbox" failed and exited with 100 during

See Get error when install google-chrome-stable -> W: GPG error: http://dl.google.com/linux/chrome/deb stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 78BD65473CB3BD13 and others.

The chrome addon takes care of installing the packages. There is no need to use the apt addon.