Not able to perform appium test

Team - I am new to appium testing and i ma trying to run a nybrid android app but i ma getting the below issues …please help

issue :
Exception in thread “main” org.openqa.selenium.WebDriverException: Not yet implemented. Please help us: http://appium.io/get-involved.html (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 10 milliseconds
Build info: version: ‘unknown’, revision: ‘unknown’, time: ‘unknown’
System info: host: ‘E645LLAX’, ip: ‘10.4.137.152’, os.name: ‘Windows 7’, os.arch: ‘x86’, os.version: ‘6.1’, java.version: ‘1.8.0_73’
Driver info: io.appium.java_client.android.AndroidDriver
Capabilities [{appPackage=com.openstream.cueme.services.workbench, networkConnectionEnabled=true, warnings={}, databaseEnabled=false, deviceName=emulator-5554, platform=LINUX, appActivity=com.openstream.cueme.services.screen.WBBrowserRenderer, desired={appPackage=com.openstream.cueme.services.workbench, appActivity=com.openstream.cueme.services.screen.WBBrowserRenderer, platformVersion=4.4.1, browserName=, platformName=Android, deviceName=My New Phone}, platformVersion=4.4.2, webStorageEnabled=false, locationContextEnabled=false, browserName=, takesScreenshot=true, javascriptEnabled=true, platformName=Android}]
Session ID: 97629950-cdcb-4939-b17b-f4c881bad27a
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:206)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:158)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:647)
at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:51)
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$RemoteTargetLocator.window(RemoteWebDriver.java:973)
at cueme.CuemeTest.main(CuemeTest.java:59)

tests:

package cueme;
//import org.openqa.selenium.By;
import org.openqa.selenium.remote.CapabilityType;

import org.openqa.selenium.remote.DesiredCapabilities;

import io.appium.java_client.android.AndroidDriver;

//import java.io.File;

import java.net.MalformedURLException;

import java.net.URL;

//import java.util.concurrent.TimeUnit;

public class CuemeTest {

private static AndroidDriver driver;

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

	
	// Create object of DesiredCapabilities class

	DesiredCapabilities capabilities = new DesiredCapabilities();

	// Optional

	capabilities.setCapability(CapabilityType.BROWSER_NAME, "");

	// Specify the device name (any name)

	capabilities.setCapability("deviceName", "My New Phone");

	// Platform version

	capabilities.setCapability("platformVersion", "4.4.1");

	// platform name

	capabilities.setCapability("platformName", "Android");

	// specify the application package that we copied from appium

	//capabilities.setCapability("appPackage", "io.selendroid.directory");
	capabilities.setCapability("appPackage", "com.openstream.cueme.services.workbench");

	// specify the application activity that we copied from appium

    //capabilities.setCapability("appActivity", "EmployeeDirectory");
	capabilities.setCapability("appActivity","com.openstream.mmi.gui.CuemeActivityDelegate");
	capabilities.setCapability("appActivity","com.openstream.cueme.services.screen.WBBrowserRenderer");

	// Start android driver, default it will be 4723

	driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
	driver.switchTo().window("WEBVIEW");
	 //driver.findElement(By.tagName("input")).sendKeys("test");
	driver.findElementByTagName("userId").sendKeys("sysadmin");
	driver.findElementByTagName("CuemePassword").sendKeys("MMNext13#");
	
	// close the application
	Thread.sleep(20000);

	driver.quit();

}

}