Elixer 1.7+ needed. Documentation (on Debian systems) states 1.5+
While trying to install Pleroma I got the following message:
** (Mix) You're trying to run :pleroma on Elixir v1.6.1 but it has declared in its mix.exs file it supports only Elixir ~> 1.7
The documentation here however states you should have at least Elixer version 1.5 . So, I suppose the doc needs to be updated on this point?