线程“主”java.lang.NoClassDefFoundError 中的异常：org/openqa/selenium/remote/codec/w3c/W3CHttpCommandCodec

“线程中的异常”；“主要”；JAVAlang.NoClassDefFoundError:org/openqa/selenium/remote/codec/w3c/W3CHttpCommandCodec

这个错误是因为依赖关系吗？我在Stack Overflow检查了类似的问题，但没有想到如何解决它。

这是我的代码：

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

import org.openqa.selenium.remote.DesiredCapabilities;

import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.android.AndroidElement;
import io.appium.java_client.remote.MobileCapabilityType;

public class base {
    
    public static AndroidDriver Capabilities() throws MalformedURLException {
        
        File appdir=new File("src");
        File app=new File(appdir,"ApiDemos-debug.apk");
        
        DesiredCapabilities cap = new DesiredCapabilities();
        cap.setCapability(MobileCapabilityType.DEVICE_NAME,"Emulator1");
        cap.setCapability(MobileCapabilityType.AUTOMATION_NAME,"uiautomator2");
        cap.setCapability(MobileCapabilityType.APP, app.getAbsolutePath());
        AndroidDriver driver=new AndroidDriver<>(new URL("http://127.0.0.1:4723/wd/hub"),cap);
        return driver;
    }

这是我在运行测试后看到的：

    авг 13, 2019 11:26:55 PM io.appium.java_client.remote.AppiumCommandExecutor$1 lambda$0
INFO: Detected dialect: W3C
Exception in thread "main" java.lang.NoClassDefFoundError: org/openqa/selenium/remote/codec/w3c/W3CHttpCommandCodec
    at io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:262)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:552)
    at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:41)
    at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1)
    at io.appium.java_client.android.AndroidDriver.execute(AndroidDriver.java:1)
    at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:213)
    at io.appium.java_client.AppiumDriver.startSession(AppiumDriver.java:323)
    at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:131)
    at io.appium.java_client.DefaultGenericMobileDriver.(DefaultGenericMobileDriver.java:37)
    at io.appium.java_client.AppiumDriver.(AppiumDriver.java:86)
    at io.appium.java_client.AppiumDriver.(AppiumDriver.java:96)
    at io.appium.java_client.android.AndroidDriver.(AndroidDriver.java:94)
    at base.Capabilities(base.java:22)
    at basics.main(basics.java:12)
Caused by: java.lang.ClassNotFoundException: org.openqa.selenium.remote.codec.w3c.W3CHttpCommandCodec
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 14 more