increase compatibility with mix

Author: lukaszsamson

apps/elixir_ls_debugger/lib/debugger/server.ex

@@ -1397,6 +1397,7 @@ defmodule ElixirLS.Debugger.Server do
 
     Output.debugger_console("Running with MIX_ENV: #{Mix.env()} MIX_TARGET: #{Mix.target()}\n")
 
+    Launch.ensure_no_slashes(task)
     Mix.Task.run("loadconfig")
 
     # make sure ANSI is disabled

apps/elixir_ls_utils/lib/launch.ex

@@ -225,4 +225,10 @@ defmodule ElixirLS.Utils.Launch do
     Mix.env(from_env("MIX_ENV", :dev))
     Mix.target(from_env("MIX_TARGET", :host))
   end
+
+  def ensure_no_slashes(task) do
+    if String.contains?(task, "/") do
+      raise Mix.NoTaskError, task: task
+    end
+  end
 end