org.openqa.selenium.WebDriverException：断开连接：使用 ChromeDriver 时未连接到 DevTools 错误 使用 Selenium 和 Java 的 Chrome

Question

我看到下面的错误，并且浏览器之间已断开连接。它只发生在 chrome 上。我使用的硒版本是：

<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>3.141.59</version> 

错误堆栈跟踪：

[1579632222.785][SEVERE]: Unable to receive message from renderer
org.openqa.selenium.WebDriverException: disconnected: not connected to DevTools
  (Session info: chrome=79.0.3945.117)
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:17:03'
System info: host: 'MBP15-PBJGH8.8x8.com', ip: 'fe80:0:0:0:1846:114d:10a6:bf26%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.14.6', java.version: '1.8.0_201'
Driver info: org.openqa.selenium.chrome.ChromeDriver
Capabilities {acceptInsecureCerts: false, browserName: chrome, browserVersion: 79.0.3945.117, chrome: {chromedriverVersion: 78.0.3904.70 (edb9c9f3de024..., userDataDir: /var/folders/mz/2_llwtkx31d...}, goog:chromeOptions: {debuggerAddress: localhost:54446}, javascriptEnabled: true, networkConnectionEnabled: false, pageLoadStrategy: normal, platform: MAC, platformName: MAC, proxy: Proxy(), setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: dismiss and notify}
Session ID: 3577826ba5ac2d089a34e17f9aa987c9

Answer 1

这个错误信息...

org.openqa.selenium.WebDriverException: disconnected: not connected to DevTools
  (Session info: chrome=79.0.3945.117)
.
.
Capabilities {acceptInsecureCerts: false, browserName: chrome, browserVersion: 79.0.3945.117, chrome: {chromedriverVersion: 78.0.3904.70 (edb9c9f3de024..., userDataDir: /var/folders/mz/2_llwtkx31d...}, goog:chromeOptions: {debuggerAddress: localhost:54446}, javascriptEnabled: true, networkConnectionEnabled: false, pageLoadStrategy: normal, platform: MAC, platformName: MAC, proxy: Proxy(), setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: dismiss and notify}

...意味着ChromeDriver无法启动/生成新的浏览上下文，即Chrome 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：

• 您正在使用chromedriver=78.0
• chromedriver=78.0的发行说明明确提到了以下内容：

支持Chrome v78

• 您正在使用chrome=79.0
• Release Notes of ChromeDriver v79.0 clearly mentions the following :

Supports Chrome 79

So there is a clear mismatch between the ChromeDriver v78.0 and the Chrome Browser v79.0

Solution

Ensure that:

• ChromeDriver is updated to current ChromeDriver v79.0.3945.36 level.
• Chrome is updated to current Chrome Version 79.0 level. (as per ChromeDriver v79.0 release notes)
• Clean your Project Workspace through your IDE and Rebuild your project with required dependencies only.
• If your base Web Client version is too old, then uninstall it and install a recent GA and released version of Web Client.
• Take a System Reboot.
• Execute your @Test as non-root user.
• Always invoke driver.quit() within tearDown(){} method to close & destroy the WebDriver and Web Client instances gracefully.