I installed the pycharm community version 2016.
I tried to configure it to debug Odoo, as shown in capture

When I open a python file, set a breakpoint and click on the debug icon, I get an exception:

Also openerp, fields, api are underlined in red.
Any suggestions please. I am using Windows 8.1 as OS
Update
According to Mariusz Answer, I can now clic on the debug bud without any errors.
Now I put the breakpoint on the code to execute the execution, but the breakpoint is never reached (the code is inside the bud method) while this method is executing. I see the result on the page oode.

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