Not able to install packages in Pycharm

Question

I have pycharm community edition(latest stable build) installed on my Ubuntu 16.04 LTS, I am not able to install packages via pycharm, was able to install them before. I can

Answer 1

I had the same issue. It happened suddenly, day ago I was able to perform pip or install packages but on the next day error appeared. However this helped (I used version PyCharm Community Edition 2018):

Go to Settings -> Project Interpreter -> click green "+" icon (on right) -> Manage Repositories (on bottom) -> delete https://pypi.python.org/simple -> add https://pypi.python.org/pypi then click Ok. Repo will be back again as /simple, but don't worry, error should disappear and you should be able to install packages again.