连接被拒绝并且轮询更改失败：尝试使用 Selenium GeckoDriver 和 Firefox 获取资源时出现 NetworkError

Question

如标题所示，现在，firefox打开，似乎什么都没做，然后就消失了！

我之前在本地 ubuntu 16.04 虚拟机上运行进行过此操作，一切正常。

(是的，我已经升级到最新的selenium等，如下：硒 3.141.0 碎片 0.10.0 六个 1.12.0 urllib3 1.25.3) 现在，geckodriver.log 显示以下内容：

1559646629845   geckodriver     INFO    Listening on 127.0.0.1:60172  
1559646630836   mozprofile::profile     INFO    Using profile path /tmp/rust_mozprofile.5DqFww40mZ6W  
1559646630851   geckodriver::marionette INFO    Starting browser /usr/bin/firefox  
1559646630857   geckodriver::marionette INFO    Connecting to Marionette on localhost:46681  
1559646631959   addons.webextension.screenshots@mozilla.org     WARN    Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: mozillaAddons  
1559646631960   addons.webextension.screenshots@mozilla.org     WARN    Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: resource://pdf.js/  
1559646631960   addons.webextension.screenshots@mozilla.org     WARN    Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: about:reader*  
1559646637156   Marionette      INFO    Listening on port 2828  
console.error: BroadcastService:  
  receivedBroadcastMessage: handler for  
  remote-settings/monitor_changes  
  threw error:  
  Message: Error: Polling for changes failed: NetworkError when attempting to fetch resource..  
  Stack:  
    remoteSettingsFunction/remoteSettings.pollChanges@resource://services-settings/remote-settings.js:190:13  
JavaScript error: jar:file:///usr/lib/firefox/omni.ja!/components/nsUrlClassifierListManager.js, line 329: NS_ERROR_NOT_INITIALIZED: Component returned failure code: 0xc1f30001 (NS_ERROR_NOT_INITIALIZED) [nsIUrlClassifierDBService.getTables]  
JavaScript error: jar:file:///usr/lib/firefox/omni.ja!/components/nsUrlClassifierListManager.js, line 329: NS_ERROR_NOT_INITIALIZED: Component returned failure code: 0xc1f30001 (NS_ERROR_NOT_INITIALIZED) [nsIUrlClassifierDBService.getTables]  
1559646742440   Marionette      INFO    Stopped listening on port 2828ss

我也在远程 ubuntu-16.04 VM（没有 GUI）上尝试过，控制台显示相同的 "connection refused" 消息，但这次 geckodriver.log 显示了不同的问题，如下所示：（硒 3.141.0 六个 1.12.0 碎片 0.10.0 urllib3 1.25.3)

1559563047915   geckodriver     INFO    geckodriver 0.18.0  
1559563047918   geckodriver     INFO    Listening on 127.0.0.1:51758  
1559563049045   geckodriver::marionette INFO    Starting browser  /usr/bin/firefox with args ["-marionette"]  
MobaXterm X11 proxy: Unsupported authorisation protocol  
Failed to connect to Mir: Failed to connect to server socket: No such file or directory  
Unable to init server: Broadway display type not supported:   localhost:11.0  
Error: cannot open display: localhost:11.0  
1559644244502   geckodriver     INFO    geckodriver 0.18.0
1559644244506   geckodriver     INFO    Listening on 127.0.0.1:53086
1559644245634   geckodriver::marionette INFO    Starting browser /usr/bin/firefox with args ["-marionette"]
MobaXterm X11 proxy: Unsupported authorisation protocol
Failed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Broadway display type not supported: localhost:10.0
Error: cannot open display: localhost:10.0

我的测试代码是：

from splinter import Browser
browser = Browser()
browser.visit( 'https://www.google.com' )
browser.fill( 'q', 'splinter - python acceptance testing     for web application' )
browser.quit()

我很高兴有类似的问题发布到 "connection refused" type issues with selenium...我希望找到一个特定于 python 的解决方案，在我看来是 'network issue' 或 'display issue'...

Answer 1

这个错误信息...

1559646629845   geckodriver     INFO    Listening on 127.0.0.1:60172  
1559646630836   mozprofile::profile     INFO    Using profile path /tmp/rust_mozprofile.5DqFww40mZ6W  
1559646630851   geckodriver::marionette INFO    Starting browser /usr/bin/firefox  
1559646630857   geckodriver::marionette INFO    Connecting to Marionette on localhost:46681  
1559646631959   addons.webextension.screenshots@mozilla.org     WARN    Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: mozillaAddons  
1559646637156   Marionette      INFO    Listening on port 2828  
console.error: BroadcastService:  
  receivedBroadcastMessage: handler for  
  remote-settings/monitor_changes  
  threw error:  
  Message: Error: Polling for changes failed: NetworkError when attempting to fetch resource..  
  Stack:  
    remoteSettingsFunction/remoteSettings.pollChanges@resource://services-settings/remote-settings.js:190:13  
JavaScript error: jar:file:///usr/lib/firefox/omni.ja!/components/nsUrlClassifierListManager.js, line 329: NS_ERROR_NOT_INITIALIZED: Component returned failure code: 0xc1f30001 (NS_ERROR_NOT_INITIALIZED) [nsIUrlClassifierDBService.getTables]  
1559646742440   Marionette      INFO    Stopped listening on port 2828s

...意味着 GeckoDriver 无法 initiate/spawn 新的 WebBrowsing Session 即 Firefox 浏览器 会话。

您的主要问题是您使用的二进制文件版本之间不兼容，如下所示：

您的 GeckoDriver 版本 geckodriver v0.18.0。（根据第二组日志的第一行 ...geckodriver INFO geckodriver 0.18.0...）
您的 Selenium Client 版本是 3.141.0.
我们不知道您的 Firefox 版本。

因此 GeckoDriver v0.18.0 Selenium Client v3.141.0.

之间存在明显的不匹配

解决方案

将 Selenium 升级到当前级别 Version 3.141.59。
将 GeckoDriver 升级到最新的 GeckoDriver v0.24.0 级别。
确保 GeckoDriver 存在于所需位置。
GeckoDriver 拥有 non-root 用户的可执行权限。
将 Firefox 升级到当前的 Firefox v65.0.2 级别。
通过 IDE 和 [=34] 清理 您的 项目工作区 =]重建你的项目只需要依赖。
如果您的基本 Web Client 版本太旧，则卸载它并安装最新的 GA 和发布版本的 Web Client。
始终在 tearDown(){} 方法中调用 driver.quit() 以优雅地关闭和销毁 WebDriver 和 Web Client 实例.

Note: Always maintain the following GeckoDriver, Selenium and Firefox Browser compatibility matrix

You can find a relevant detailed discussionin Which Firefox browser versions supported for given Geckodriver version?

连接被拒绝并且轮询更改失败：尝试使用 Selenium GeckoDriver 和 Firefox 获取资源时出现 NetworkError

Connection Refused and Polling for changes failed: NetworkError when attempting to fetch resource error with Selenium GeckoDriver and Firefox

python

firefox

selenium

splinter

geckodriver

解决方案

结尾