有人可以帮忙解决这个问题

package IEProjects;

    import java.io.File;

    import org.junit.BeforeClass;
    import org.openqa.selenium.WebDriver;
    import org.openqa.selenium.chrome.ChromeDriver;
    import org.openqa.selenium.ie.InternetExplorerDriver;
    import org.testng.Assert;
    import org.testng.annotations.AfterClass;
    import org.testng.annotations.Test;

    public class TestIEBrowser {


              static String driverPath = "IE driver path";
              public WebDriver driver;             


                @BeforeClass
                public void setUp() {
                    System.out.println("my IE");
                    System.out.println("launching IE browser");
                    System.setProperty("webdriver.ie.driver","C:\\IEDriverServer_Win32_3.3.0\\IEDriverServer.exe");

                    driver = new InternetExplorerDriver();
                    driver.manage().window().maximize();
                }

                @Test
                public void testGooglePageTitleInIEBrowser() {
                    driver.navigate().to("http://www.google.com");
                    String strPageTitle = driver.getTitle();
                    System.out.println("Page title: - "+strPageTitle);
                    Assert.assertTrue(strPageTitle.equalsIgnoreCase("Google"), "Page title doesn't match");
                }

                @AfterClass
                public void tearDown() {
                    if(driver!=null) {
                        System.out.println("Closing IE browser");
                        driver.quit();
        }

    }
    }

这是下面的错误，我感谢您的及时回复 .

FAILED：在sun.reflect的sun.reflect.NativeMethodAccessorImpl.invoke（未知来源）的sun.reflect.NativeMethodAccessorImpl.invoke0（本地方法）中的IEProjects.TestIEBrowser.testGooglePageTitleInIEBrowser（TestIEBrowser.java:32）中的testGooglePageTitleInIEBrowser java.lang.NullPointerException . 在org.testng.internal.InvokeMethod上的org.testng.internal.MethodInvocationHelper.invokeMethod（MethodInvocationHelper.java:108）的java.lang.reflect.Method.invoke（未知来源）中删除了MethodAethorImpl.invoke（未知来源） Invoker.java:661）org.testng.internal.InvokeTinMethod（Invoker.java:869）org.testng.internal.Invoke.invokeTestMethods（Invoker.java:1193）atg.testng.internal.TestMethodWorker.invokeTestMethods （TestMethodWorker.java:126）在org.testng.internal.TestMethodWorker.run（TestMethodWorker.java:109）在org.testng.TestRunner.privateRun（TestRunner.java:744）在org.testng.TestRunner.run（TestRunner的 . java：602）at org.testng.SuiteRunner.runTest（SuiteRunner.java： 380）在org.testng.SuiteRunner.runSequentially（SuiteRunner.java:375）在org.testng.SuiteRunner.privateRun（SuiteRunner.java:340）在org.testng.SuiteRunner.run（SuiteRunner.java:289）在有机testng.SuiteRunnerWorker.runSuite（SuiteRunnerWorker.java:52）在org.testng.SuiteRunnerWorker.run（SuiteRunnerWorker.java:86）在org.testng.TestNG.runSuitesSequentially（TestNG.java:1301）在org.testng.TestNG.runSuitesLocally （TestNG.java:1226）在org.testng.TestNG.runSuites（TestNG.java:1144）在org.testng.TestNG.run（TestNG.java:1115）在org.testng.remote.AbstractRemoteTestNG.run（AbstractRemoteTestNG . java：132）org.testng.remote.RemoteTestNG.initAndRun（RemoteTestNG.java:230）at org.testng.remote.RemoteTestNG.main（RemoteTestNG.java:76）============ ===================================
默认测试
测试运行：1，失败：1，跳过：0
===============================================

===============================================
默认套件
总测试运行：1，失败：1，跳过：0

谢谢