python - 拒绝连接和轮询更改失败：尝试使用 Selenium GeckoDriver 和 Firefox 获取资源错误时出现 NetworkError

Question

根据标题，现在，Firefox 打开，似乎什么都不做，然后消失了！

1. 我以前从本地 ubuntu 16.04 VM 运行过它，一切都很好。

（是的，我已经升级到最新的 selenium 等如下：selenium 3.141.0 splinter 0.10.0 6 1.12.0 urllib3 1.25.3）现在，geckodriver.log 显示如下：

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   [e-mail]     WARN    Loading extension '[e-mail]': Reading manifest: Invalid extension permission: mozillaAddons  
1559646631960   [e-mail]     WARN    Loading extension '[e-mail]': Reading manifest: Invalid extension permission: resource://pdf.js/  
1559646631960   [e-mail]     WARN    Loading extension '[e-mail]': 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  

2. 我也在远程 ubuntu-16.04 VM（没有 GUI）上试过这个，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 6 1.12 .0 分裂 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()

我很欣赏在硒的“连接被拒绝”类型问题上发布了类似的问题......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”......

标签： pythonseleniumfirefoxgeckodriversplinter

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   [e-mail]     WARN    Loading extension '[e-mail]': 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/产生新的WebBrowsing 会话，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的不兼容，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。

---

解决方案

• 将Selenium升级到当前级别版本 3.141.59。
• 将GeckoDriver升级到最新的 GeckoDriver v0.24.0级别。
• 确保GeckoDriver出现在所需位置。
• GeckoDriver对非 root 用户具有可执行权限。
• 将Firefox升级到当前的Firefox v65.0.2级别。
• 通过IDE清理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，请卸载它并安装最新的 GA 和已发布版本的Web 客户端。
• 始终driver.quit()在tearDown(){}方法内调用以优雅地关闭和销毁WebDriver和Web Client实例。

注意：始终保持以下GeckoDriver、Selenium和Firefox 浏览器兼容性矩阵

您可以在给定的 Geckodriver 版本支持哪些 Firefox 浏览器版本中找到相关的详细讨论？

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奥特罗

• 初始化 selenium webdriver 时如何修复 python-selenium 错误“连接被拒绝”？
• 如何修复“WebDriverException：消息：连接被拒绝”？