Случайное исключение java.lang.IllegalStateException: Фрагмент не имеет вида

Question

Многие пользователи сталкиваются с этим исключением. Я использовал несколько видов деятельности и фрагментов, поэтому я понятия не имею, откуда это происходит. Это определенно не связано с DialogFragment, так как я даже не использую его в своем приложении.

Вот полный трассировки стека:

0 java.lang.RuntimeException: Unable to start activity ComponentInfo{project/project.MainActivity}: java.lang.IllegalStateException: Fragment does not have a view 
1  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2426) 
2  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490) 
3  at android.app.ActivityThread.-wrap11(ActivityThread.java) 
4  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354) 
5  at android.os.Handler.dispatchMessage(Handler.java:102) 
6  at android.os.Looper.loop(Looper.java:148) 
7  at android.app.ActivityThread.main(ActivityThread.java:5443) 
8  at java.lang.reflect.Method.invoke(Native Method) 
9  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
10  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
11 Caused by: java.lang.IllegalStateException: Fragment does not have a view 
12  at android.support.v4.app.Fragment$1.onFindViewById(SourceFile:1922) 
13  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1057) 
14  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1248) 
15  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1230) 
16  at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(SourceFile:2042) 
17  at android.support.v4.app.Fragment.performActivityCreated(SourceFile:1976) 
18  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1092) 
19  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1248) 
20  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1230) 
21  at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(SourceFile:2042) 
22  at android.support.v4.app.FragmentController.dispatchActivityCreated(SourceFile:165) 
23  at android.support.v4.app.FragmentActivity.onStart(SourceFile:543) 
24  at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1260) 
25  at android.app.Activity.performStart(Activity.java:6261) 
26  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2389) 
27  ... 9 more 
28 java.lang.IllegalStateException: Fragment does not have a view 
29  at android.support.v4.app.Fragment$1.onFindViewById(SourceFile:1922) 
30  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1057) 
31  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1248) 
32  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1230) 
33  at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(SourceFile:2042) 
34  at android.support.v4.app.Fragment.performActivityCreated(SourceFile:1976) 
35  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1092) 
36  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1248) 
37  at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1230) 
38  at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(SourceFile:2042) 
39  at android.support.v4.app.FragmentController.dispatchActivityCreated(SourceFile:165) 
40  at android.support.v4.app.FragmentActivity.onStart(SourceFile:543) 
41  at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1260) 
42  at android.app.Activity.performStart(Activity.java:6261) 
43  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2389) 
44  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490) 
45  at android.app.ActivityThread.-wrap11(ActivityThread.java) 
46  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354) 
47  at android.os.Handler.dispatchMessage(Handler.java:102) 
48  at android.os.Looper.loop(Looper.java:148) 
49  at android.app.ActivityThread.main(ActivityThread.java:5443) 
50  at java.lang.reflect.Method.invoke(Native Method) 
51  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
52  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 

Любая идея, что это исключение связано?

Answer 1

похоже, что вы используете фрагмент в MainActivity и что возврат onCreateView не является допустимым видом (возможно, null).