geckodriver executable needs to be in path

Question

I have read previous questions asked on this topic and tried to follow the suggestions but I continue to get errors. On terminal, I ran

export PATH=$PATH:/Users/Conger/Documents/geckodriver-0.8.0-OSX

I also tried

    export PATH=$PATH:/Users/Conger/Documents/geckodriver

When I run the following Python code

from selenium import webdriver
from selenium.webdriver.firefox.firefox_binary import FirefoxBinary
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities


firefox_capabilities = DesiredCapabilities.FIREFOX
firefox_capabilities['marionette'] = True
firefox_capabilities['binary'] = '/Users/Conger/Documents/Firefox.app'

driver = webdriver.Firefox(capabilities=firefox_capabilities)

I still get the following error

Python - testwebscrap.py:8
Traceback (most recent call last):
  File "/Users/Conger/Documents/Python/Crash_Course/testwebscrap.py", line 11, in <module>
    driver = webdriver.Firefox(capabilities=firefox_capabilities)
  File "/Users/Conger/miniconda2/lib/python2.7/site-packages/selenium/webdriver/firefox/webdriver.py", line 135, in __init__
    self.service.start()
  File "/Users/Conger/miniconda2/lib/python2.7/site-packages/selenium/webdriver/common/service.py", line 71, in start
    os.path.basename(self.path), self.start_error_message)
selenium.common.exceptions.WebDriverException: Message: 'geckodriver' executable needs to be in PATH. 

Exception AttributeError: "'Service' object has no attribute 'process'" in <bound method Service.__del__ of <selenium.webdriver.firefox.service.Service object at 0x1006df6d0>> ignored
[Finished in 0.194s]

Answer 1

you may downgrade your selenium by

pip install selenium==2.53.6

This has solved my issue

Answer 2

On mac:

brew install geckodriver

Homebrew is the most popular package manager for Mac OS X, you will need install XCode on your mac and it will be then accesible from your terminal.

You can follow this tutorial if required

Answer 3

First we know that gekodriver is the driver engine of Firefox,and we know that driver.Firefox() is used to open Firefox browser, and it will call the gekodriver engine ,so we need to give the gekodirver a executable permission. so we download the latest gekodriver uncompress the tar packge ,and put gekodriver at the /usr/bin/ ok,that's my answer and i have tested.