预期的浏览器二进制位置，但无法在默认位置找到二进制，不提供'moz:firefoxOptions.binary'功能 [英] Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided

问题描述

我正试图重新使用python webdriver.我在这里有代码

I am trying to get back into using python webdriver. I have here the code

from selenium import webdriver
driver = webdriver.Firefox(executable_path=r'C:\Users\Cody\Downloads\geckodriver.exe')
driver.get('http://inventwithpython.com')

这导致:

C:\Users\Cody\Projects>python accounting.py
Traceback (most recent call last):
  File "accounting.py", line 4, in <module>
    driver = webdriver.Firefox(executable_path=r'C:\Users\Cody\Downloads\geckodriver.exe')
  File "C:\Users\Cody\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\selenium\webdriver\firefox\webdriver.py", line 170, in __init__
    RemoteWebDriver.__init__(
  File "C:\Users\Cody\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\selenium\webdriver\remote\webdriver.py", line 157, in __init__
    self.start_session(capabilities, browser_profile)
  File "C:\Users\Cody\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\selenium\webdriver\remote\webdriver.py", line 252, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "C:\Users\Cody\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "C:\Users\Cody\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.SessionNotCreatedException: Message: Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line

如果我尝试:

from selenium import webdriver
driver = webdriver.Firefox(executable_path=r'C:\Users\Cody\Downloads')
driver.get('http://inventwithpython.com')

我知道

C:\Users\Cody\Projects>python accounting.py
Traceback (most recent call last):
  File "C:\Users\Cody\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\selenium\webdriver\common\service.py", line 72, in start
    self.process = subprocess.Popen(cmd, env=self.env,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.2032.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 854, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.2032.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 1307, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
PermissionError: [WinError 5] Access is denied

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "accounting.py", line 4, in <module>
    driver = webdriver.Firefox(executable_path=r'C:\Users\Cody\Downloads')
  File "C:\Users\Cody\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\selenium\webdriver\firefox\webdriver.py", line 164, in __init__
    self.service.start()
  File "C:\Users\Cody\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\selenium\webdriver\common\service.py", line 86, in start
    raise WebDriverException(
selenium.common.exceptions.WebDriverException: Message: 'Downloads' executable may have wrong permissions.

Geckodriver.exe位于下载文件夹中.任何帮助表示赞赏

Geckodriver.exe is sitting right there in the downloads folder. Any help appreciated

推荐答案

此错误消息...

selenium.common.exceptions.SessionNotCreatedException: Message: Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line

...表示 GeckoDriver无法找到 firefox 可执行文件尝试启动/产生新的浏览上下文时，即 Firefox浏览器会话.

...implies that the GeckoDriver was unable to locate the firefox executable while trying to initiate/spawn a new Browsing Context i.e. Firefox Browser session.

此错误的两个主要原因如下:

The two primary reasons for this error are as follows:

系统中未安装
• Firefox .
• Firefox 未安装在系统的默认位置.

• Firefox isn't installed within your system.
• Firefox isn't installed at the default location within your system.

可能的解决方案是:

• 如果系统中未安装 Firefox ，则需要先安装它，然后再执行测试.

• If Firefox isn't installed in your system, you need to install it before executing your tests.

如果将 Firefox 安装在自定义位置，则需要通过以下方式传递 firefox 二进制文件的绝对路径: Options()实例:

If Firefox is installed at a customized location, you need to pass the absolute path of the firefox binary as follows through an Options() instance:

from selenium import webdriver

options = webdriver.FirefoxOptions()
options.binary_location = r"C:/location/to/Firefox/Binary/firefox.exe"
driver = webdriver.Firefox(executable_path=r'C:\Users\Cody\Downloads\geckodriver.exe', options=options)
driver.get('http://inventwithpython.com/')

您可以在以下位置找到几个相关的详细讨论:

You can find a couple of relevant detailed discussion in:

• SessionNotCreatedException:消息:预期的浏览器二进制位置，但无法在默认位置找到二进制文件，没有'moz:firefoxOptions.binary'
• InvalidArgumentException:消息:二进制不是使用GeckoDriver Firefox Selenium和Python的Firefox可执行错误
• 预期浏览器的二进制位置，但无法在默认位置找到二进制文件，没有使用GeckoDriver提供的'moz:firefoxOptions.binary'功能

这篇关于预期的浏览器二进制位置，但无法在默认位置找到二进制，不提供'moz:firefoxOptions.binary'功能的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！