Error message

λ : make
Erlang/OTP 18 [erts-7.2.1] [source] [64-bit] [smp:8:8] [async-threads:10] [hipe] [kernel-poll:false] [dtrace]


== Compilation error on file lib/api/http.ex ==
** (CompileError) lib/api/http.ex:38: undefined function generate/2
    (stdlib) erl_eval.erl:669: :erl_eval.do_apply/6

make: *** [start] Error 1

http.ex

  routes = [change_requests: ChangeRequests]

  for {name, route} <- routes do
    get "/#{unquote(name), {Api.Resource.Cases, ChangeRequests},
      service: Api.Service.ChangeRequest,
      read: {Api.Resource.Cases.Read, ChangeRequests.Read},
      create: {Api.Resource.Cases.Create, ChangeRequests.Create},
      delete: {Api.Resource.Cases.Delete, ChangeRequests.Delete}

    post "/#{unquote(name), {Api.Resource.Cases.Create, ChangeRequests.Create},
      service: Api.Service.ChangeRequest,
      read: {Api.Resource.Cases.Read, ChangeRequests.Read}

    get "/#{unquote(name)}/:item", {Api.Resource.Cases.Read, ChangeRequests.Read},
      service: Api.Service.ChangeRequest,
      delete: {Api.Resource.Cases.Delete, ChangeRequests.Delete}

    delete "/#{unquote(name)}/:item", {Api.Resource.Cases.Delete, ChangeRequests.Delete},
      service: Api.Service.ChangeRequest,
      index: {Api.Resource.Cases, ChangeRequests}
  end