```Traceback (most recent call last):

 "/home/tools/dorks/zeus/zeus-scanner/var/search/selenium_search.py", line 268, in parse_search_results
tor=tor, batch=batch, xforward=forward_for

 "/home/tools/dorks/zeus/zeus-scanner/var/search/selenium_search.py", line 82, in get_urls
browser = var.search.SetBrowser(agent=user_agent, proxy=proxy, tor=tor, xforward=xforward).set_browser()

 "/home/tools/dorks/zeus/zeus-scanner/var/search/__init__.py", line 148, in set_browser
executable_path=whichcraft.which("geckodriver"))

 "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/webdriver.py", line 144, in __init__
self.service.start()

 "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/service.py", line 93, in start
(os.path.basename(self.path), self.start_error_message, str(e)))

 "/usr/lib/python2.7/posixpath.py", line 114, in basename
i = p.rfind('/') + 1AttributeError: 'NoneType' object has no attribute 'rfind'
Traceback (most recent call last):


 "node2vec.py", line 58, in <module>

main()


 "node2vec.py", line 38, in main

optimizer = torch.optim.SparseAdam(model.parameters(), lr=args.lr)


 "/home/asouza/anaconda3/lib/python3.6/site-packages/torch/optim/sparse_adam.py", line 49, in __init__

super(SparseAdam, self).__init__(params, defaults)


 "/home/asouza/anaconda3/lib/python3.6/site-packages/torch/optim/optimizer.py", line 47, in __init__

raise ValueError("optimizer got an empty parameter list")
ValueError: optimizer got an empty parameter list