title: Error type 3. Activity class {com.awesome_project/ com.awesome_project.MainActivity} does not exist in react native (Android device)
body: <p>I've created the project using the following command.    </p>
  
  <pre><code>react-native init Awesome_Project
  </code></pre>
  
  <p>I've started the packager using the following command.    </p>
  
  <pre><code>react-native start
  </code></pre>
  
  <p>I've connected my Android mobile using USB drive.</p>
  
  <p>I've opened another command prompt and run the following adb command to make sure that only one device is connected.</p>
  
  <pre><code>adb devices
  </code></pre>
  
  <p>I've started the application using the following command.</p>
  
  <pre><code>react-native run-android
  </code></pre>
  
  <p>I've been confronted with the following error.</p>
  
  <pre><code>open: Permission denied
  open: Permission denied
  Starting: Intent { com.awesome_project/.MainActivity }
  Error type 3
  Error: Activity class {com.awesome_project/ com.awesome_project.MainActivity} does not exist.
  </code></pre>
  
  <p>Thanks in advance.</p>