[Galaxy S Advance I9070 Original Android Developmen] GeoVali99:
07-13 15:19:25.444 W/dalvikvm( 3160): VFY: unable to resolve static method 1128: Landroid/sec/multiwindow/MultiWindow;.createInstance (Landroid/app/Activity;)Landroid/sec/multiwindow/MultiWindow;

You were right.

Another errors:

07-13 15:19:25.454 I/dalvikvm( 3160): Could not find method android.sec.multiwindow.MultiWindow.isMultiWindow, referenced from method com.android.contacts.activities.DialtactsActivity.onResume

07-13 15:19:25.454 W/dalvikvm( 3160): VFY: unable to resolve virtual method 1130: Landroid/sec/multiwindow/MultiWindow;.isMultiWindow ()Z

07-13 15:19:25.454 D/dalvikvm( 3160): VFY: replacing opcode 0x6e at 0x0176

07-13 15:19:25.454 I/dalvikvm( 3160): Could not find method android.sec.multiwindow.MultiWindow.isMultiWindow, referenced from method com.android.contacts.activities.DialtactsActivity.onWindowStatusChanged

07-13 15:19:25.454 W/dalvikvm( 3160): VFY: unable to resolve virtual method 1130: Landroid/sec/multiwindow/MultiWindow;.isMultiWindow ()Z

07-13 15:19:25.454 D/dalvikvm( 3160): VFY: replacing opcode 0x6e at 0x0046

07-13 15:19:25.464 W/dalvikvm( 3160): VFY: unable to find class referenced in signature (Landroid/sec/multiwindow/MultiWindow;)

07-13 15:19:25.464 I/dalvikvm( 3160): Could not find method android.sec.multiwindow.MultiWindow.isMultiWindow, referenced from method com.android.contacts.activities.DialtactsActivity$1.onTabSelected

07-13 15:19:25.464 W/dalvikvm( 3160): VFY: unable to resolve virtual method 1130: Landroid/sec/multiwindow/MultiWindow;.isMultiWindow ()Z

07-13 15:19:25.464 D/dalvikvm( 3160): VFY: replacing opcode 0x6e at 0x007a

07-13 15:19:25.464 W/dalvikvm( 3160): VFY: unable to find class referenced in signature (Landroid/sec/multiwindow/MultiWindow;)

07-13 15:19:25.464 W/dalvikvm( 3160): VFY: unable to find class referenced in signature (Landroid/sec/multiwindow/MultiWindow;)

07-13 15:19:25.734 I/dalvikvm( 3160): Could not find method android.sec.multiwindow.MultiWindow.getRect, referenced from method com.sec.android.app.dialertab.dialpad.DialpadFragment.WindowStatusChanged

07-13 15:19:25.734 W/dalvikvm( 3160): VFY: unable to resolve virtual method 1129: Landroid/sec/multiwindow/MultiWindow;.getRect ()Landroid/graphics/Rect;

07-13 15:19:25.734 D/dalvikvm( 3160): VFY: replacing opcode 0x6e at 0x0050

07-13 15:19:25.744 I/dalvikvm( 3160): Could not find method android.sec.multiwindow.MultiWindow.createInstance, referenced from method com.sec.android.app.dialertab.dialpad.DialpadFragment.onCreate

07-13 15:19:25.744 W/dalvikvm( 3160): VFY: unable to resolve static method 1128: Landroid/sec/multiwindow/MultiWindow;.createInstance (Landroid/app/Activity;)Landroid/sec/multiwindow/MultiWindow;

07-13 15:19:25.744 D/dalvikvm( 3160): VFY: replacing opcode 0x71 at 0x00a8

07-13 15:19:25.754 I/dalvikvm( 3160): Could not find method android.sec.multiwindow.MultiWindow.isMultiWindow, referenced from method com.sec.android.app.dialertab.dialpad.DialpadFragment.resetAllLayout

07-13 15:19:25.754 W/dalvikvm( 3160): VFY: unable to resolve virtual method 1130: Landroid/sec/multiwindow/MultiWindow;.isMultiWindow ()Z

07-13 15:19:25.984 E/AndroidRuntime( 3160): java.lang.NoClassDefFoundError: android.sec.multiwindow.MultiWindow

07-13 15:19:30.158 W/dalvikvm( 4362): VFY: unable to find class referenced in signature (Landroid/sec/multiwindow/MultiWindow;)

07-13 15:19:30.158 W/dalvikvm( 4362): VFY: unable to find class referenced in signature (Landroid/sec/multiwindow/MultiWindow;)

07-13 15:19:30.168 W/dalvikvm( 4362): VFY: unable to find class referenced in signature (Landroid/sec/multiwindow/MultiWindow;)

07-13 15:19:33.381 I/dalvikvm( 5274): Could not find method android.sec.multiwindow.MultiWindow.createInstance, referenced from method com.android.calendar.month.MonthByWeekFragment.setMonthEventListView

07-13 15:19:33.381 W/dalvikvm( 5274): VFY: unable to resolve static method 805: Landroid/sec/multiwindow/MultiWindow;.createInstance (Landroid/app/Activity;)Landroid/sec/multiwindow/MultiWindow;

07-13 15:19:33.842 I/dalvikvm( 5274): Could not find method android.sec.multiwindow.MultiWindow.createInstance, referenced from method com.android.calendar.CalendarSearchView.<init>

07-13 15:19:33.842 W/dalvikvm( 5274): VFY: unable to resolve static method 805: Landroid/sec/multiwindow/MultiWindow;.createInstance (Landroid/app/Activity;)Landroid/sec/multiwindow/MultiWindow;

Finding more...more...more...more...more...more...

Multiwindows error party LOL...

Call a experienced dev in this........:-o