message: Make sure the directory has been created in make file
diff: @@ -9,6 +9,7 @@ make echo:
  echo $(PROJECT)
  make gpu-image:
  + mkdir -p staging
  cp ../*.py staging/
  cp ../requirements.txt staging/
  cp player_wrapper.sh staging/
  @@ -18,6 +19,7 @@ make gpu-image:
  rm staging/player_wrapper.sh
  image:
  + mkdir -p staging
  cp ../*.py staging/
  cp ../requirements-cpu.txt staging/
  cp player_wrapper.sh staging/
  