:0: Unknown function 'Elixir.ExUnit.Callbacks':'__merge__'/3 :0: Unknown function 'Elixir.ExUnit.CaseTemplate':'__proxy__'/2 :0: Unknown type 'Elixir.Map':t/0 apps/explorer/lib/explorer/indexer/block_fetcher.ex:246: The created fun has no local return apps/explorer/lib/explorer/indexer/block_fetcher.ex:253: The created fun has no local return