There, errors took from the ActivityManager within the Eclipse Console for the Android plugin and of course some explanations.
1. Error 1
1.1. The console text
ActivityManager: Starting: Intent
{
act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.badprog/.Tutorial
}
ActivityManager: Warning: Activity not started, its current task has been brought to the front
1.2. The solution
This error occurs when you run your application without modifying anything before.
To remove it, just add a space in your code and save it.
Restart your application and this error should have gone.