WebDriverError：45000 ms后无法连接到端口7055上的主机127.0.0.1

Question

Selenium在Firefox中运行量角器测试时未启动。依赖版本详细信息指定如下：

让我知道哪里出了问题，我错过了什么？

节点版本:v4.3.1

量角器版本:3.2.1业力版本:0.13.21

Selenium版本:2.52.0火狐版本:47.0.1

Firefox控制台输出：

C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\error.js:27
    super(opt_error);
         ^
WebDriverError: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output:
MlocE","location":"winreg-app-global","version":"15.1.0","type":"extension","internalName":null,"updateURL":null,"updateKey":null,"optionsURL":null,"optionsType":null,"aboutURL":null,"icons":{},"iconURL":"chrome://vscore/content/ScriptFF.gif","icon64URL":null,"defaultLocale":{"name":"McAfee ScriptScan for Firefox","description":null,"creator":"McAfee, Inc.","homepageURL":null},"visible":true,"active":false,"userDisabled":true,"appDisabled":false,"descriptor":"C:\\Program Files (x86)\\Common Files\\McAfee\\SystemCore","installDate":1465363824840,"updateDate":1465363824840,"applyBackgroundUpdates":1,"bootstrap":false,"skinnable":false,"size":2695168,"sourceURI":null,"releaseNotesURI":null,"softDisabled":false,"foreignInstall":true,"hasBinaryComponents":false,"strictCompatibility":false,"locales":[],"targetApplications":[{"id":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","minVersion":"1.5","m
1467645009572   DeferredSave.extensions.json    DEBUG   Save changes
1467645009572   addons.xpi      DEBUG   Updating database with changes to installed add-ons
1467645009572   addons.xpi-utils        DEBUG   Updating add-on states
1467645009579   addons.xpi-utils        DEBUG   Writing add-ons list
1467645009586   addons.xpi      DEBUG   Registering manifest for C:\Program Files (x86)\Mozilla Firefox\browser\features\[e-mail]
1467645009587   addons.xpi      DEBUG   Calling bootstrap method startup on [e-mail] version 1.0
1467645009587   addons.xpi      DEBUG   Registering manifest for C:\Program Files (x86)\Mozilla Firefox\browser\features\[e-mail]
1467645009588   addons.xpi      DEBUG   Calling bootstrap method startup on [e-mail] version 1.0.2
1467645009589   addons.xpi      DEBUG   Registering manifest for C:\Program Files (x86)\Mozilla Firefox\browser\features\[e-mail]
1467645009590   addons.xpi      DEBUG   Calling bootstrap method startup on [e-mail] version 1.3.2
1467645009609   addons.manager  DEBUG   Registering shutdown blocker for XPIProvider
1467645009609   addons.manager  DEBUG   Provider finished startup: XPIProvider
1467645009610   addons.manager  DEBUG   Starting provider: LightweightThemeManager
1467645009610   addons.manager  DEBUG   Registering shutdown blocker for LightweightThemeManager
1467645009610   addons.manager  DEBUG   Provider finished startup: LightweightThemeManager
1467645009610   addons.manager  DEBUG   Starting provider: GMPProvider
1467645009616   addons.manager  DEBUG   Registering shutdown blocker for GMPProvider
1467645009617   addons.manager  DEBUG   Provider finished startup: GMPProvider
1467645009617   addons.manager  DEBUG   Starting provider: PluginProvider
1467645009617   addons.manager  DEBUG   Registering shutdown blocker for PluginProvider
1467645009617   addons.manager  DEBUG   Provider finished startup: PluginProvider
1467645009618   addons.manager  DEBUG   Completed startup sequence
1467645009955   addons.manager  DEBUG   Starting provider: <unnamed-provider>
1467645009955   addons.manager  DEBUG   Registering shutdown blocker for <unnamed-provider>
1467645009955   addons.manager  DEBUG   Provider finished startup: <unnamed-provider>
1467645010210   DeferredSave.extensions.json    DEBUG   Write succeeded
1467645010210   addons.xpi-utils        DEBUG   XPI Database saved, setting schema version preference to 17
1467645010210   DeferredSave.extensions.json    DEBUG   Starting timer
1467645010247   DeferredSave.extensions.json    DEBUG   Starting write
1467645010259   addons.repository       DEBUG   No addons.json found.
1467645010260   DeferredSave.addons.json        DEBUG   Save changes
1467645010263   DeferredSave.addons.json        DEBUG   Starting timer
1467645010426   addons.manager  DEBUG   Starting provider: PreviousExperimentProvider
1467645010426   addons.manager  DEBUG   Registering shutdown blocker for PreviousExperimentProvider
1467645010426   addons.manager  DEBUG   Provider finished startup: PreviousExperimentProvider
1467645010431   DeferredSave.addons.json        DEBUG   Starting write
1467645010455   DeferredSave.extensions.json    DEBUG   Write succeeded
1467645010505   DeferredSave.addons.json        DEBUG   Write succeeded

    at WebDriverError (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\error.js:27:10)
    at Object.checkLegacyResponse (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\error.js:580:13)
    at C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\webdriver.js:64:13
    at Promise.invokeCallback_ (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:1329:14)
    at TaskQueue.execute_ (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2790:14)
    at TaskQueue.executeNext_ (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2773:21)
    at C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2652:27
    at C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:639:7
    at process._tickCallback (node.js:364:9)
From: Task: WebDriver.createSession()
    at acquireSession (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\webdriver.js:62:22)
    at Function.createSession (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\webdriver.js:295:12)
    at Builder.build (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\builder.js:458:24)
    at [object Object].DriverProvider.getNewDriver (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\built\driverProviders\driverProvider.js:42:27)
    at [object Object].Runner.createBrowser (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\built\runner.js:203:37)
    at C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\built\runner.js:293:21
    at _fulfilled (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\q\q.js:834:54)
    at self.promiseDispatch.done (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\q\q.js:863:30)
    at Promise.promise.promiseDispatch (C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\q\q.js:796:13)
    at C:\Users\tester\AppData\Roaming\npm\node_modules\protractor\node_modules\q\q.js:604:44
[launcher] Process exited with error code 1

Answer 1

Firefox47与selenium webdriver 2.53存在兼容性问题（您有2.52，但我认为这仍然是一个问题）。您需要将Firefox降级到46.0.1，或者安装包含该修复程序的Firefox最新开发版本。

或者/和，您应该将Protractor升级到最新版本（目前是3.3.0)，这将自带最新的selenium-webdriver包（注意：Protractor尝试与selenium-webdriver中的最新更新同步，但3.3.0具体依赖于相同的2.52.0，而另一个版本是2.53.2，下一个3.4.0将安装该版本）。