title: Android First App tutorial not working
body: <p>I'm following the Android developers tutorial to build the first application. I did precisely what it says step by step and completed this page:
   <a href="https://developer.android.com/training/basics/firstapp/starting-activity.html" rel="nofollow">https://developer.android.com/training/basics/firstapp/starting-activity.html</a></p>
  
  <p>Here I get many Java related errors:</p>
  
  <pre><code>Description                               Resource             Path                             Location    Type
  View cannot be resolved to a type   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 24 Java Problem
  Intent cannot be resolved to a type MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 25 Java Problem
  Intent cannot be resolved to a type DisplayMessageActivity.java /MyFirstApp/src/com/example/myfirstapp  line 16 Java Problem
  TextView cannot be resolved to a type   DisplayMessageActivity.java /MyFirstApp/src/com/example/myfirstapp  line 20 Java Problem
  TextView cannot be resolved to a type   DisplayMessageActivity.java /MyFirstApp/src/com/example/myfirstapp  line 20 Java Problem
  Intent cannot be resolved to a type MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 25 Java Problem
  EditText cannot be resolved to a type   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 26 Java Problem
  EditText cannot be resolved to a type   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 26 Java Problem
  edit_message cannot be resolved or is not a field   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 26 Java Problem
  </code></pre>
  
  <p>Any help please?</p>
  
  <p>EDIT:
  @pawalzieba Ok, now I get only these 3 errors:</p>
  
  <pre><code>Description Resource    Path    Location    Type
  edit_message cannot be resolved or is not a field   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 29 Java Problem
  error: Error: No resource found that matches the given name (at 'hint' with value '@string/edit_message').  activity_main.xml   /MyFirstApp/res/layout  line 6  Android AAPT Problem
  error: Error: No resource found that matches the given name (at 'text' with value '@string/button_send').   activity_main.xml   /MyFirstApp/res/layout  line 11 Android AAPT Problem
  </code></pre>