Tutorial 1 - the 'package' argument is required to perform a relative import for

[GabMartino]

In the tutorial 1, seems there's a problem with the paths.
After typing:
(.venv) ./revolve.py --simulator-cmd=gazebo --manager ./tutorial1.py

I have:
STARTING
Traceback (most recent call last):
File "./revolve.py", line 69, in
main()
File "./revolve.py", line 62, in main
run(loop, arguments)
File "./revolve.py", line 28, in run
manager = importlib.import_module(manager_lib).run
File "/usr/lib/python3.6/importlib/init.py", line 121, in import_module
raise TypeError(msg.format(name))
TypeError: the 'package' argument is required to perform a relative import for '...revolveProject.tutorial'

Actually I used another folder and not the root one as mentioned in the tutorial, but following exactly the tutorial I received the same message.