traitlets.traitlets.TraitError in Pycharm

Question

I am a beginner in python. I am facing the following problem.

Whenever I start pycharm Community edition (version 5.0.3), the Python console fails to starts and shows th

Answer 1

I initially tried unsuccessfully by trying

pip install -U ipython

But then tried following and it worked:

pip uninstall ipython[all]
pip uninstall traitlets
pip install ipython

Thanks @mirandes