how to add Clear system Files in appium - appium

Question

i have to perform login activity in android application using appium java. my application is opening but login is not happening and getting below error in in appium server.
[AndroidDriver] Not cleaning generated files. Add clearSystemFiles capability if wanted.
Actual Result: Android application is opening but login activity not performed and giving below error:
Appium server is giving error like '[AndroidDriver] Not cleaning generated files. Add clearSystemFiles capability if wanted.'
Expected Result: Appium server should not get error and Login activity should also perform, once application is opened
package Automation;
import io.appium.java_client.AppiumDriver;
import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.remote.MobileCapabilityType;
import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import java.net.URL;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
public class AppiumTest2 {
AppiumDriver driver;
public void setup() throws Exception {
DesiredCapabilities Capabilities = new DesiredCapabilities();
Capabilities.setCapability("deviceName", "codeblaze");
Capabilities.setCapability("platforVersion", "7.0");
Capabilities.setCapability("platformName", "Adnroid");
Capabilities.setCapability("appPackage", "package name");
Capabilities.setCapability("appActivity", "activity name");
driver = new AndroidDriver(new URL("http://0.0.0.0:4723/wd/hub"), Capabilities);
}
public void tearDown() throws Exception {
driver.quit();
}
public void LogInWithInvalidEmail() {
WebElement emailTextField = (new WebDriverWait(driver,60)).until(ExpectedConditions.presenceOfElementLocated(By.id("etusername")));
emailTextField.sendKeys("Invalid Email");
WebElement passwordTextField = driver.findElement(By.id("etpassword"));
passwordTextField.sendKeys("Random Password");
WebElement loginButton = driver.findElement(By.id("lllogin"));
loginButton.click();
}
}
Appium server is giving error like '[AndroidDriver] Not cleaning generated files. Add clearSystemFiles capability if wanted.'
Expected Result: Appium server should not get error and Login activity should also perform, once application is opened

Answer 1

It should be as simple as:
Capabilities.setCapability(io.appium.java_client.remote.MobileCapabilityType.CLEAR_SYSTEM_FILES, true);
another issue might be connected with the typo in the platformName capability which should be Android, not Adnroid
It's better to stick to Page Object Model design pattern in Selenium and/or Appium tests, it will allow you to split UI representation from the test logic.
If above hints will not help - consider restarting the device/simulator.
More information: App was not copied, so not deleting