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这里的摄制：为什么current_url会在Ubuntu 16.04上提升“Selenium＆PhantomJS无法解码JSON对象”？
sudo apt install phantomjs
export QT_QPA_PLATFORM=offscreen
python
>>> import selenium.webdriver
>>> from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
>>> browser = selenium.webdriver.PhantomJS(desired_capabilities=DesiredCapabilities.PHANTOMJS)
>>> browser.get('http://example.com')
>>> browser.title
u'Example Domain'
>>> browser.current_url
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 454, in current_url
return self.execute(Command.GET_CURRENT_URL)['value']
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 201, in execute
self.error_handler.check_response(response)
File "/usr/local/lib.python2.7/dist-packages/selenium/webdriver/remote/errorhandler.py", line 102, in check_response
value = json.loads(value_json)
File "/usr/lib/python2.7/json/__init__.py", line 339, in loads
return _default_decoder.decode(s)
File "/usr/lib/python2.7/json/decoder.py", line 364, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python2.7/json/decoder.py", line 382, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
注：
- 我在虚拟机上运行安装所有更新（
sudo apt update和sudo apt dist-upgrade已经运行）。 - 此问题似乎也被捕获为Ubuntu bug 1569899。我还没有尝试修复建议（从tarball构建PhantomJS）。
- 的
QT_QPA_PLATFORM=offscreen变量是修复错误： “QXcbConnection：无法连接到显示”（Debian错误817277，PhantomJS问题14376）
UPDATE我添加了一个简单print捕捉原料响应和这里的它是什么：
{'status': 404, 'value': u"Error: - Unable to load Atom 'execute_script' from file ':/ghostdriver/./third_party/webdriver-atoms/execute_script.js'"}