[Morse simulation]Module not found: No module named 'morse.middleware.ros_request_manager'

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HI there,

I'm trying to use the Morse simulation but find some problems while run the tutorial"examples/tutorials/tutorial-1-ros.py". The error is as follow:

[helpers.loading] Module not found: No module named 'morse.middleware.ros_request_manager'
[helpers.loading] Could not load the class RosRequestManager in morse.middleware.ros_request_manager
[helpers.loading] Could not create an instance of morse.middleware.ros_request_manager.RosRequestManager
[core.services] Request Manager morse.middleware.ros_request_manager.RosRequestManager not found. Check for typos in the configuration file!

I've already installed the python3.4 and other elements which tutorials indicates. link text

And also refered the answer: link text But still cannot solve the problem.

Any ideas of this problem?