title: Activity used to start app doesn't exist (Cannot open Calculator app in Android 5.1.1)
body: <p>I'm really new to Appium so excuse me if its a repeat question. But, I'm trying to run some tests on the calculator app on Android 5.1.1 using Appium and it results in the following error.</p>
  
  <blockquote>
    <p>error: Failed to start an Appium session, err was: Error: Activity
    used to start app doesn't exist or cannot be launched! Make sure it
    exists and is a launchable activity</p>
    
    <p>info: [debug] Error: Activity used to start app doesn't exist or
    cannot be launched! Make sure it exists and is a launchable activity</p>
  </blockquote>
  
  <p>Test Code (capabilities):</p>
  
  <pre><code>capabilities.setCapability("appPackage", "SecCalculator2");
  capabilities.setCapability("appActivity", "com.sec.android.app.popupcalculator.Calculator");
  </code></pre>
  
  <p>I have downloaded the 'APK info' app on my phone and this app shows the following info.</p>
  
  <p>APK path: <code>/system/app/SecCalculator2/SecCalculator2.apk</code></p>
  
  <p>Activities: <code>com.sec.android.app.popupcalculator.Calculator</code></p>
  
  <p>So am I using the correct package and activity names in the capabilities?</p>
  
  <p>Thanks in advance</p>