Question

我是webdriver的新手，我正在尝试运行以下代码

var assert = require('assert');
describe('webdriver.io page', function() {
    it('should have the right title', function () {
        browser.url('/');
        var title = browser.getTitle();
        assert.equal(title,'WebDriverIO - Selenium 2.0 javascript bindings for nodejs');

    });
});

当我尝试运行$ npm测试时，它给了我以下异常

> web-wedio@1.0.0 test /Users/user_namej/Downloads/web-wedio
> wdio

A service failed in the 'onPrepare' hook
Error: Selenium exited before it could start
Another Selenium process may already be running or your java version may be out of date.
Be sure to check the official Selenium release notes for minimum required java version: https://raw.githubusercontent.com/SeleniumHQ/selenium/master/java/CHANGELOG

    at ChildProcess.errorIfNeverStarted (/Users/user_namej/Downloads/web-wedio/node_modules/selenium-standalone/lib/start.js:158:10)
    at ChildProcess.emit (events.js:159:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:209:12)

Continue...
[23:57:43]  COMMAND POST     "/wd/hub/session"
ERROR: Error forwarding the new session Empty pool of VM for setup Capabilities [{rotatable=true, locationContextEnabled=true, loggingPrefs=org.openqa.selenium.logging.LoggingPreferences@9288a03, browserName=firefox, javascriptEnabled=true, handlesAlerts=true, maxInstances=5, requestOrigins={name=webdriverio, version=4.13.1, url=http://webdriver.io}}]
firefox
    at new RuntimeError (/Users/user_namej/Downloads/web-wedio/node_modules/webdriverio/build/lib/utils/ErrorHandler.js:143:12)
    at Request._callback (/Users/user_namej/Downloads/web-wedio/node_modules/webdriverio/build/lib/utils/RequestHandler.js:316:39)
    at Request.self.callback (/Users/user_namej/Downloads/web-wedio/node_modules/request/request.js:185:22)
    at Request.emit (events.js:159:13)
    at Request.<anonymous> (/Users/user_namej/Downloads/web-wedio/node_modules/request/request.js:1157:10)
    at Request.emit (events.js:159:13)
    at IncomingMessage.<anonymous> (/Users/user_namej/Downloads/web-wedio/node_modules/request/request.js:1079:12)
    at Object.onceWrapper (events.js:254:19)
    at IncomingMessage.emit (events.js:164:20)
    at endReadableNT (_stream_readable.js:1062:12)

我尝试。使用

关闭服务器

http://localhost:4444/selenium-server/driver/?cmd=shutDownSeleniumServer

但是它被重定向到500错误页面，我也尝试用不同的命令来实现

lsof -i :4444
kill -9 $(lsof -ti tcp:4444)

仍然无法正常工作。我该怎么办。如果需要更多详细信息，请告诉我

Answer 1

傻问题，但是您检查过Java版本是否兼容吗？

如果没有，也许可以帮助解释您的问题：https://github.com/SeleniumHQ/selenium/issues/2043

无法使用WebDriver IO运行基本测试

1 个答案: