fix: prompt the user to run mix deps.get when dependency problems happen

at runtime

Closes #53

lib/next_ls.ex

@@ -1065,6 +1065,15 @@ defmodule NextLS do
     {:noreply, lsp}
   end
 
+  def handle_info({ref, {:runtime_failed, _, _} = error}, %{assigns: %{refresh_refs: refs}} = lsp) when is_map_key(refs, ref) do
+    Process.demonitor(ref, [:flush])
+    {{token, msg}, refs} = Map.pop(refs, ref)
+
+    Progress.stop(lsp, token, msg)
+    send(self(), error)
+
+    {:noreply, assign(lsp, refresh_refs: refs)}
+  end
   def handle_info({ref, _resp}, %{assigns: %{refresh_refs: refs}} = lsp) when is_map_key(refs, ref) do
     Process.demonitor(ref, [:flush])
     {{token, msg}, refs} = Map.pop(refs, ref)

lib/next_ls/runtime.ex

@@ -303,7 +303,7 @@ defmodule NextLS.Runtime do
             diagnostics
 
           {:error, %Mix.Error{message: "Can't continue due to errors on dependencies"}} ->
-            nil
+            {:runtime_failed, state.name, {:error, :deps}}
 
           unknown ->
             NextLS.Logger.warning(state.logger, "Unexpected compiler response: #{inspect(unknown)}")
@@ -362,6 +362,13 @@ defmodule NextLS.Runtime do
     {:noreply, state}
   end
 
+  def handle_info({port, {:data, "Unchecked dependencies" <> _ = data}}, %{port: port} = state) do
+    NextLS.Logger.log(state.logger, data)
+
+    state.on_initialized.({:error, :deps})
+    {:noreply, state}
+  end
+
   def handle_info({port, {:data, data}}, %{port: port} = state) do
     NextLS.Logger.info(state.logger, data)
     {:noreply, state}