lang.NoClassDefFoundError：ORG/apacheの/ HTTP/IMPL/CONN/PoolingClientConnectionManager htmlunit.HttpWebConnection.createHttpClient

Question

public static void main(String[] args) throws IOException { 
    RbnRunner runner = new RbnRunner(); 
    runner.run(); 

} 

public void run() throws IOException { 

    System.setProperty("webdriver.chrome.driver", "/Users/me/samples/Adam_milford/src/chromedriver"); 

    WebDriver driver = new ChromeDriver(); 

が、私は代わりにクロームドライバーのヘッドレスセレンドライバを初期化したい、コードfailes：

public static void main(String[] args) throws IOException { 
    WebDriver driver = new HtmlUnitDriver(); 

なぜですか？

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/http/impl/conn/PoolingClientConnectionManager 
    at com.gargoylesoftware.htmlunit.HttpWebConnection.createHttpClient(HttpWebConnection.java:536) 
    at com.gargoylesoftware.htmlunit.HttpWebConnection.getHttpClient(HttpWebConnection.java:500) 
    at com.gargoylesoftware.htmlunit.HttpWebConnection.setUseInsecureSSL(HttpWebConnection.java:711) 
    at com.gargoylesoftware.htmlunit.WebClient.setUseInsecureSSL(WebClient.java:1096) 
    at org.openqa.selenium.htmlunit.HtmlUnitDriver.createWebClient(HtmlUnitDriver.java:263) 
    at org.openqa.selenium.htmlunit.HtmlUnitDriver.<init>(HtmlUnitDriver.java:129) 
    at org.openqa.selenium.htmlunit.HtmlUnitDriver.<init>(HtmlUnitDriver.java:172) 
    at org.openqa.selenium.htmlunit.HtmlUnitDriver.<init>(HtmlUnitDriver.java:168) 
    at RbnRunner.run(RbnRunner.java:40) 
    at RbnRunner.main(RbnRunner.java:28) 
Caused by: java.lang.ClassNotFoundException: org.apache.http.impl.conn.PoolingClientConnectionManager 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
    ... 10 more 

Answer 1

org.apache.http.impl.conn.PoolingClientConnectionManager 

利用できません...あなたがどこかのライブラリを持っていますか？