AndroidRuntime(1177): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.jsonandroid/com.example.jsonandroid.MainActivity}: java.lang.RuntimeException: Your content must have a ListViewandroid.app.Activity.setContentView(Activity.java:1881)
05-17 11
AndroidRuntime(1177): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.jsonandroid/com.example.jsonandroid.MainActivity}: java.lang.RuntimeException: Your content must have a ListViewandroid.app.Activity.setContentView(Activity.java:1881)
05-17 11
780): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.jsonandroid/com.example.jsonandroid.ContactActivity}; have you declared this activity in your AndroidManifest.xmlandroid.app.Activity.startActivityForResult(Activity.java:3331)