Phoenix 1.5 requires Elixir >= 1.7. Be sure your existing version is up to date by running elixir -v on the command line.
$ mix archive.uninstall phx_new
$ mix archive.install hex phx_new 1.5.0| -- Create animated GIFs with mpv | |
| -- Requires ffmpeg. | |
| -- Adapted from http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html | |
| -- Usage: "g" to set start frame, "G" to set end frame, "Ctrl+g" to create. | |
| local msg = require 'mp.msg' | |
| -- Set this to the filters to pass into ffmpeg's -vf option. | |
| -- filters="fps=24,scale=320:-1:flags=lanczos" | |
| filters="fps=15,scale=540:-1:flags=lanczos" |