Issue while trying to add propercheck dep for property testing

I receive this error

== Compilation error in file path/campaign_test.exs ==
** (exit) exited in: GenServer.call(PropCheck.CounterStrike, {:counter_example, {MyModuleTest, :"property_my property tests", []}}, 5000)
    ** (EXIT) no process: the process is not alive or there's no process currently associated with the given name, possibly because its application isn't started
    (elixir 1.12.1) lib/gen_server.ex:1014: GenServer.call/3
    lib/properties.ex:151: PropCheck.Properties.tag_property/1
    path/campaign_test.exs:5: (module)
    (stdlib 3.12.1) erl_eval.erl:680: :erl_eval.do_apply/6
    (elixir 1.12.1) lib/kernel/parallel_compiler.ex:428: Kernel.ParallelCompiler.require_file/2
    (elixir 1.12.1) lib/kernel/parallel_compiler.ex:321: anonymous fn/4 in Kernel.ParallelCompiler.spawn_workers/7

and the code I am trying to test looks like this

defmodule MyModuleTest do
  use ExUnit.Case 
  use PropCheck

  property "my property tests" do
    forall number <- integer() do 
      # any test
    end
  end
end

So it doesn’t work at all. Is not something related to the test itself. Any ideas?