Android Driver not working in appium

Question

I am new to Appium and was trying on android device, so while writing code I want to use Android Driver but everytime error comes up, check the error below

"Exception in thread "main" org.openqa.selenium.WebDriverException: Returned value cannot be converted to WebElement: {ELEMENT=1} Build info: version: '3.4.0', revision: 'unknown', time: 'unknown' System info: host: 'DESKTOP-HT0VM72', ip: '192.168.88.104', os.name: 'Windows 10', os.arch: 'x86', os.version: '10.0', java.version: '1.8.0_144' Driver info: driver.version: AndroidDriver at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:417) at io.appium.java_client.DefaultGenericMobileDriver.findElement(DefaultGenericMobileDriver.java:62) at io.appium.java_client.AppiumDriver.findElement(AppiumDriver.java:1) at io.appium.java_client.android.AndroidDriver.findElement(AndroidDriver.java:1) at org.openqa.selenium.remote.RemoteWebDriver.findElementByName(RemoteWebDriver.java:485) at io.appium.java_client.DefaultGenericMobileDriver.findElementByName(DefaultGenericMobileDriver.java:110) at io.appium.java_client.AppiumDriver.findElementByName(AppiumDriver.java:1) at io.appium.java_client.android.AndroidDriver.findElementByName(AndroidDriver.java:1) at org.openqa.selenium.By$ByName.findElement(By.java:303) at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:402) at io.appium.java_client.DefaultGenericMobileDriver.findElement(DefaultGenericMobileDriver.java:58) at io.appium.java_client.AppiumDriver.findElement(AppiumDriver.java:1) at io.appium.java_client.android.AndroidDriver.findElement(AndroidDriver.java:1) at demo.TestCase1.main(TestCase1.java:31) Caused by: java.lang.ClassCastException: java.util.HashMap cannot be cast to org.openqa.selenium.WebElement at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:415) ... 13 more"

but if i replace AndroidDriver with RemoveWebDriver it works fine? why? "Appium version 1.4.16.1 (Ophiuchus)"

package demo;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;

import io.appium.java_client.android.AndroidDriver;

public class TestCase1 {

    public static void main(String[] args) throws MalformedURLException {

        RemoteWebDriver driver;
        DesiredCapabilities cap=new DesiredCapabilities();
        cap.setCapability("deviceName", "Fever 4G");
        cap.setCapability("platformVersion", "6.0");
        cap.setCapability("platformName", "Android");
        cap.setCapability("appPackage", "com.vector.guru99");
        cap.setCapability("appActivity", "com.vector.guru99.BaseActivity");
        driver =new RemoteWebDriver(new URL("http://127.0.0.1:4723/wd/hub"), cap);
        driver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);

        //verification1
        if(driver.findElement(By.name("Guru99")).isDisplayed())
            System.out.println("guru99 header is displayed");
        else 
            System.out.println("guru99 is not displayed");

        //verification2
        if(driver.findElement(By.name("Course Category")).isSelected())
            System.out.println("Course category is currently selected");
        else 
            System.out.println("Course Category is not selected");

        //Get all the courses listed in the course category
        List<WebElement> courseoffered=driver.findElements(By.id("com.vector.guru99:id/lblListHeader"));
        System.out.println("Course offered are :");
        for(WebElement course : courseoffered)
        {
            String cours= course.getText();
            System.out.println(cours);
            if(course.isEnabled())
                System.out.println("  is Enabled ");
            else
                System.out.println("  is not Enabled");

        }
        driver.quit();

    }

}

dmle dmle · Accepted Answer · 2017-12-02T23:01:01

You didn't mention what appium java client version you are using, but first:

driver.findElement(By.name("Course Category")).isSelected()

Note: Locator Strategy 'name' is not supported for Appium session since version 1.5, and if you will use latest client version you will get org.openqa.selenium.InvalidSelectorException with explaining details.

While using latest server/client combination (1.7.1, 5.0.4 java), there is no problem of using both cases you mentioned:

RemoteWebDriver driver = new RemoteWebDriver(url, capabilities);

or

AppiumDriver driver = new AndroidDriver(url, capabilities);

Both work for finding elements and there attributes.

Android Driver not working in appium

1 Answers