gist.ex

```
Compressing objects: 100% (62/62), done.
Writing objects: 100% (71/71), 80.06 KiB | 4.45 MiB/s, done.
Total 71 (delta 1), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Elixir app detected
remote: -----> Checking Erlang and Elixir versions
remote:        WARNING: elixir_buildpack.config wasn't found in the app
remote:        Using default config from Elixir buildpack
remote:        Will use the following versions:
remote:        * Stack heroku-16
remote:        * Erlang 20.1
remote:        * Elixir 1.5.0
remote: -----> Will export the following config vars:
remote: DATABASE_URL
remote: POOL_SIZE
remote:        * MIX_ENV=prod
remote: -----> Stack changed, will rebuild
remote: -----> Fetching Erlang 20.1
remote: -----> Installing Erlang 20.1 (changed)
remote:
remote: -----> Fetching Elixir v1.5.0 for OTP 20
remote: -----> Installing Elixir v1.5.0 (changed)
remote: -----> Installing Hex
remote: * creating /app/.mix/archives/hex-0.18.1
remote: -----> Installing rebar
remote: * creating /app/.mix/rebar
remote: * creating /app/.mix/rebar3
remote: -----> Fetching app dependencies with mix
remote: ** (Mix.Config.LoadError) could not load config config/prod.secret.exs
remote:     ** (File.Error) could not read file "/tmp/build_3b698acae09875967003e0a928bb9bd2/config/prod.secret.exs": no such file or directory
remote:     (elixir) lib/file.ex:272: File.read!/1
remote:     (mix) lib/mix/config.ex:180: Mix.Config.read!/2
remote:     (mix) lib/mix/config.ex:217: anonymous fn/3 in Mix.Config.read_wildcard!/2
remote:     (elixir) lib/enum.ex:1811: Enum."-reduce/3-lists^foldl/2-0-"/3
remote:     (stdlib) erl_eval.erl:670: :erl_eval.do_apply/6
remote:     (stdlib) erl_eval.erl:878: :erl_eval.expr_list/6
remote:     (stdlib) erl_eval.erl:404: :erl_eval.expr/5
remote:  !     Push rejected, failed to compile Elixir app.
remote:
remote:  !     Push failed
remote: Verifying deploy...
remote:
remote: !	Push rejected to radiant-falls-87131.
remote:
To https://git.heroku.com/radiant-falls-87131.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/radiant-falls-87131.git'
```