Error: selenium common. exceptions. WebDriverException: Messag‘geckodriver‘ execute

Question why ：

Use pip install selenium, The latest version is installed by default selenium,selenium 3.x Start ,webdriver/firefox/webdriver.py Of __init__ in ,executable_path="geckodriver"; and 2.x yes executable_path="wires"

terms of settlement ：

1. download geckodriver: Download link ：Releases · mozilla/geckodriver · GitHub

2. Will download and unzip geckodriver.exe File down Firefox Installation directory

3. Add environment variables ：Firefox Installation directory

4. Restart PyCharm, Just run it again .

5. If not, then unzip the downloaded geckodriver.exe Copy files to copy in Python Of Script in .