python - 连接被拒绝且轮询更改失败 : NetworkError when attempting to fetch resource error with Selenium GeckoDriver and Firefox

Question

正如标题所示，现在，firefox 打开，似乎什么也没做，然后就消失了!

1. 我之前已经在本地 ubuntu 16.04 虚拟机上运行过这个程序，一切都很好。

(是的，我已经升级到最新的selenium等，如下: Selenium 3.141.0 split 0.10.0六1.12.0urllib3 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  

我还在远程 ubuntu-16.04 VM(没有 GUI)上尝试过此操作，控制台显示相同的“连接被拒绝”消息，但这次 geckodriver.log 显示不同的问题，如下所示:( Selenium 3.141.0六1.12.0 split 0.10.0urllib3 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()

我很感激有类似的问题发布到“连接被拒绝”类型的问题与 Selenium ...我希望找到一个特定于Python的解决方案，在我看来是“网络问题”或“显示问题”。 ..

Answer 1

此错误消息...

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

...暗示 GeckoDriver 无法启动/生成新的 WebBrowsing session ，即 Firefox 浏览器 session 。

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。 (根据第二组日志中的第一行...geckodriver INFO geckodriver 0.18.0...)
• 您的 Selenium 客户端版本是 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。

<小时/>

解决方案

• 将Selenium升级到当前级别 Version 3.141.59 .
• 将 GeckoDriver 升级到最新版本 GeckoDriver v0.24.0级别。
• 确保 GeckoDriver 存在于所需位置。
• GeckoDriver 对非 root 用户具有可执行权限。
• 将 Firefox 升级到当前 Firefox v65.0.2 级别。
• 通过IDE清理您的项目工作区，并仅使用所需的依赖项重建项目。
• 如果您的基本Web 客户端版本太旧，请将其卸载并安装最新的 GA 和已发布版本的Web 客户端。
• 始终在 tearDown(){} 方法中调用 driver.quit() 来关闭和销毁 WebDriver 和 Web Client 优雅地实例化。

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?

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片尾

• How to fix python-selenium error “connection refused” when initializing a selenium webdriver?
• How to fix “WebDriverException: Message: connection refused”?