Project does not compile

[baleeds]

I have downloaded the project and run the proper commands, and the database is being created with the appropriate tables. However running the server results in this message:

== Compilation error in file lib/community/web/schema.ex ==
** (Absinthe.Schema.Error) Invalid schema:
Elixir.Community.Web.Schema:0: The root query type must be implemented and be a of type Object


  #Example
  defmodule MyApp.Schema do
    use Absinthe.Schema

    query do
      #Fields go here
    end
  end

  --------------------------------------
  From the graqhql schema specifiation

  A GraphQL schema includes types, indicating where query and mutation
  operations start. This provides the initial entry points into the type system.
  The query type must always be provided, and is an Object base type. The
  mutation type is optional; if it is null, that means the system does not
  support mutations. If it is provided, it must be an object base type.

  Reference: https://facebook.github.io/graphql/#sec-Initial-types


    lib/absinthe/schema.ex:230: Absinthe.Schema.__after_compile__/2
    (stdlib) lists.erl:1263: :lists.foldl/3
    (stdlib) erl_eval.erl:670: :erl_eval.do_apply/6
    (elixir) lib/kernel/parallel_compiler.ex:206: anonymous fn/4 in Kernel.ParallelCompiler.spawn_workers/6

Any ideas what's happening here? Perhaps absinthe has made breaking changes since the project was last working?

[jaizquierdogalan]

I have the same error, @baleeds did you fix it?

[twillzy]

@baleeds and @izquierdogalan
Try upgrading your deps to the latest version

      {:absinthe_ecto, "~> 0.1.3"},
      {:absinthe_plug, "~> 1.4"},

[cclark]

Following up on @twillzy, it worked for me when I updated those dependencies but I also had to add plug_cowboy so it ended up being

{:plug_cowboy, "~> 1.0"},
{:absinthe_ecto, "~> 0.1.3"},
{:absinthe_plug, "~> 1.4"},

I tried creating a PR against https://github.com/howtographql/howtographql which is where I suspect most people reading this are coming from and encountering the error however I'm not able to get that project to run due to missing deps.