supernullset

** (FunctionClauseError) no function clause matching in IO.chardata_to_string/1
    (elixir) lib/io.ex:346: IO.chardata_to_string(nil)
    (elixir) lib/path.ex:467: Path.join/2
    (elixir) lib/path.ex:449: Path.join/1
             lib/client.ex:44: Mailgun.Client.send_without_attachments/2

supernullset

* TODO: Implement Dose Sum
  - This will involve keeping track of calculations across a whole
    profile. Which means I need some sort of global state which is
    held in the profile instance.


```
22830    !****************
22840 Dose_sum:Dos=Dos+EXP(FNConc(Rho(N),Typ(N)))
22850    Con=Con+EXP(-Rho(N))

supernullset

defmodule ErrorCodes.Repo do
  use Ecto.Repo, otp_app: :error_codes
end

defmodule ErrorCodes.ErrorCode do
  use Ecto.Schema
  schema "errors" do
  end
end