Cannot create multiple dash apps on the same flask server

[nmiculinic]

    app = dash.Dash(server=server, url_base_pathname=url_base_pathname, name=__name__)
  File "/home/lpp/Desktop/fino/venv/lib/python3.6/site-packages/dash/dash.py", line 96, in __init__
    view_func=self.serve_layout)
  File "/home/lpp/Desktop/fino/venv/lib/python3.6/site-packages/flask/app.py", line 64, in wrapper_func
    return f(self, *args, **kwargs)
  File "/home/lpp/Desktop/fino/venv/lib/python3.6/site-packages/flask/app.py", line 1051, in add_url_rule
    'existing endpoint function: %s' % endpoint)
AssertionError: View function mapping is overwriting an existing endpoint function: serve_layout

I'd like having multiple dash app in web app, however I'm reaching this exception. I'm making sure they have different url_base_pathname yet it doesn't help.

[rc1405]

That was the same error that led me to write #70, I would guess they you don't have those updates based on the exception.

[nmiculinic]

You're right, I don't. I tried latest master version and it works, but isn't yet pushed onto PyPI