请问这是什么错误?跳转到main2后显示空白,但是在预览中看到了fragment
04-09 15:35:01.260 29830-29830/com.ash.fragment E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.ash.fragment.MainActivity2.access$super
04-09 15:35:01.260 29830-29830/com.ash.fragment W/dalvikvm: VFY: unable to resolve check-cast 227 (Landroid/os/PersistableBundle;) in Lcom/ash/fragment/MainActivity2;
04-09 15:35:01.260 29830-29830/com.ash.fragment D/dalvikvm: VFY: replacing opcode 0x1f at 0x1192
04-09 15:35:01.260 29830-29830/com.ash.fragment I/dalvikvm: Could not find method android.content.ContextWrapper.getObbDirs, referenced from method com.ash.fragment.MainActivity2.access$super
04-09 15:35:01.260 29830-29830/com.ash.fragment W/dalvikvm: VFY: unable to resolve virtual method 641: Landroid/content/ContextWrapper;.getObbDirs ()[Ljava/io/File;
04-09 15:35:01.260 29830-29830/com.ash.fragment D/dalvikvm: VFY: replacing opcode 0x6f at 0x11b9
04-09 15:35:01.260 29830-29830/com.ash.fragment I/dalvikvm: Could not find method android.app.Activity.startPostponedEnterTransition, referenced from method com.ash.fragment.MainActivity2.access$super
04-09 15:35:01.260 29830-29830/com.ash.fragment W/dalvikvm: VFY: unable to resolve virtual method 274: Landroid/app/Activity;.startPostponedEnterTransition ()V
04-09 15:35:01.260 29830-29830/com.ash.fragment D/dalvikvm: VFY: replacing opcode 0x6f at 0x11bf
04-09 15:35:01.260 29830-29830/com.ash.fragment I/dalvikvm: Could not find method android.content.ContextWrapper.getExternalCacheDirs, referenced from method com.ash.fragment.MainActivity2.access$super
04-09 15:35:01.260 29830-29830/com.ash.fragment W/dalvikvm: VFY: unable to resolve virtual method 632: Landroid/content/ContextWrapper;.getExternalCacheDirs ()[Ljava/io/File;
04-09 15:35:01.260 29830-29830/com.ash.fragment D/dalvikvm: VFY: replacing opcode 0x6f at 0x122b
04-09 15:35:01.260 29830-29830/com.ash.fragment I/dalvikvm: Could not find method android.app.Activity.onEnterAnimationComplete, referenced from method com.ash.fragment.MainActivity2.access$super
04-09 15:35:01.260 29830-29830/com.ash.fragment W/dalvikvm: VFY: unable to resolve virtual method 149: Landroid/app/Activity;.onEnterAnimationComplete ()V
04-09 15:35:01.260 29830-29830/com.ash.fragment D/dalvikvm: VFY: replacing opcode 0x6f at 0x126e
04-09 15:35:01.270 29830-29830/com.ash.fragment W/dalvikvm: VFY: unable to find class referenced in signature (Landroid/os/PersistableBundle;)
