Java 无法实例化 AppiumDriver 类型

Cannot instantiate the type AppiumDriver

提问by paul

I have added following jars in my projects build path:

我在我的项目构建路径中添加了以下 jars：

1. java-client-2.0.0 from http://appium.io/downloads.html>> Appium Client libraries >> Java
2. selenium-java-2.43.1
3. selenium-java-2.43.1-srcs

4. selenium-server-standalone-2.43.1
   and here's my code:

   public class SampleApp{
   
   WebDriver dr;
   
   @Test
   public void testApp() throws MalformedURLException, InterruptedException {
       String apkpath = "D:\apkdump\sampleapp.apk";
       File app = new File (apkpath);
       DesiredCapabilities capabilities= new DesiredCapabilities();
       capabilities.setCapability(CapabilityType.BROWSER_NAME,"");
       capabilities.setCapability("deviceName","TestADB18");
       capabilities.setCapability("platformName","Android");
       capabilities.setCapability("app",app.getAbsolutePath());
       capabilities.setCapability("appPackage", "com.test");
       capabilities.setCapability("appActivity", "com.sampleapp.Main");
       dr = new AppiumDriver(new URL("http://127.0.0.1:4723/wd/hub"),capabilities);
       dr.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);
   
   }
   
   
   }
   

   I am getting red line below new AppiumDriverwhich says that Cannot instantiate the type AppiumDriver. Now if remove all selenium jarsthe error disappears but then I can't resolve errors with webdriver.

   What is the conflict between jars?

   I saw similar question herebut that could run the code and was getting Null pointer exceptionbut in my case I cant even run it, it is giving run on saving the code. Secondly the answer has been posted without usingAppiumDriver

1. java-client-2.0.0 来自http://appium.io/downloads.html>> Appium 客户端库 >> Java
2. 硒-java-2.43.1
3. selenium-java-2.43.1-srcs

4. selenium-server-standalone-2.43.1
   这是我的代码：

   public class SampleApp{
   
   WebDriver dr;
   
   @Test
   public void testApp() throws MalformedURLException, InterruptedException {
       String apkpath = "D:\apkdump\sampleapp.apk";
       File app = new File (apkpath);
       DesiredCapabilities capabilities= new DesiredCapabilities();
       capabilities.setCapability(CapabilityType.BROWSER_NAME,"");
       capabilities.setCapability("deviceName","TestADB18");
       capabilities.setCapability("platformName","Android");
       capabilities.setCapability("app",app.getAbsolutePath());
       capabilities.setCapability("appPackage", "com.test");
       capabilities.setCapability("appActivity", "com.sampleapp.Main");
       dr = new AppiumDriver(new URL("http://127.0.0.1:4723/wd/hub"),capabilities);
       dr.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);
   
   }
   
   
   }
   

   我在下面new AppiumDriver看到红线，上面写着Cannot instantiate the type AppiumDriver。现在，如果删除所有selenium jars错误消失，但我无法解决 webdriver 的错误。

   jar 之间的冲突是什么？

   我在这里看到了类似的问题，但是可以运行代码并且正在运行，Null pointer exception但是在我的情况下，我什至无法运行它，它正在运行保存代码。其次，答案已发布而未使用AppiumDriver

采纳答案by paul

This error can be fixed by downgrading the Appium Client(see step 1 in my question) from latest to java-client-1.5.0. You can keep rest of the jars to latest.

可以通过将Appium Client（参见我的问题中的第 1 步）从 latest降级到java-client-1.5.0. 您可以将其余的罐子保持最新。

Downgraded version of Appium Clientcan be downloaded from here http://mvnrepository.com/artifact/io.appium/java-client/1.5.0

Appium Client可以从这里下载的 降级版本http://mvnrepository.com/artifact/io.appium/java-client/1.5.0

回答by Hassan Radi

You don't need to downgrade or anything. There is a design change in the Java Client version 2.0.0 as they mention on their site:

你不需要降级或任何东西。正如他们在他们的网站上提到的，Java 客户端 2.0.0 版中有一个设计更改：

AppiumDriver is now an abstract class, use IOSDriver and AndroidDriver which both extend it.

AppiumDriver 现在是一个抽象类，使用 IOSDriver 和 AndroidDriver 扩展它。

So, just change your driver line to be:

因此，只需将您的驱动程序行更改为：

dr = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"),capabilities);

Hope that helps...

希望有帮助...

回答by Satya Ram hari krishna swamy

WebDriver driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"),getDesiredCapabilities("192.21.168.56:5555"));

use this. and import:

用这个。并导入：

import io.appium.java_client.AppiumDriver;
import io.appium.java_client.android.AndroidDriver;

回答by Guru

dr=new AppiumDriver(new URL("http://127.0.0.1:4723/wd/hub"),capabilities);

dr=new AppiumDriver(new URL(" http://127.0.0.1:4723/wd/hub"),capabilities);

proper URL to be established

要建立正确的 URL

回答by Manish Patil

for appium version 1.7 use capability cap.setCapability(MobileCapabilityType.AUTOMATION_NAME, "uiautomator2");

对于 appium 1.7 版使用功能 cap.setCapability(MobileCapabilityType.AUTOMATION_NAME, "uiautomator2");

while for v1.8.1 its not needed

而对于 v1.8.1 则不需要