title: Facebook Login Button error onclick
body: <p>I tried following the intstructions for adding a facebook login for my app. 
  <a href="https://developers.facebook.com/docs/facebook-login/android/v2.2" rel="nofollow">https://developers.facebook.com/docs/facebook-login/android/v2.2</a></p>
  
  <p>I did the step for Add the Login Button.</p>
  
  <p>It displays properly on my screen however I get the following error when I click it:</p>
  
  <pre><code>Process: com.parse.starter, PID: 3073
      Log in attempt failed: LoginActivity could not be started
              at com.facebook.login.LoginManager.startLogin(LoginManager.java:382)
              at com.facebook.login.LoginManager.logInWithReadPermissions(LoginManager.java:262)
              at com.facebook.login.widget.LoginButton$LoginClickListener.onClick(LoginButton.java:693)
              at com.facebook.FacebookButtonBase$1.onClick(FacebookButtonBase.java:310)
              at android.view.View.performClick(View.java:4438)
              at android.view.View$PerformClick.run(View.java:18422)
              at android.os.Handler.handleCallback(Handler.java:733)
              at android.os.Handler.dispatchMessage(Handler.java:95)
              at android.os.Looper.loop(Looper.java:136)
              at android.app.ActivityThread.main(ActivityThread.java:5001)
              at java.lang.reflect.Method.invokeNative(Native Method)
              at java.lang.reflect.Method.invoke(Method.java:515)
              at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
              at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
              at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>Do I need to handle user clicks in my code.  Somehow I thought this was inbuilt in the button. Thanks for the help.  </p>