For me it worked by Going to PyCharm Settings-> Project: "the name of your prj" -> Python Interpreter -> AddLocalInterpreter-> adding the existing python base interpreter from your PC and create another base folder called "venv1"

So in my case, basically I replaced the previous **"virtual base interpreter"**with the new one: "venv1". The old one I think it was corrupted because i previously installed another pip version and some conflict issues might have been triggered.