monodroid mvvmcross應用程序無法恢復

我在恢復monodroid mvvmcross應用程序時遇到了一些麻煩：每當應用程序轉到後臺並停止它不能恢復。這裏是例外的logcat的：monodroid mvvmcross應用程序無法恢復
I/ActivityManager( 389): Start proc com.tasteitandroidclient for activity com.t 
asteitandroidclient/tasteitandroidclient.MyProfilePage: pid=30611 uid=10066 gids 
={50066, 3003, 1006, 1015, 1028} 
D/Zygote ( 129): Process 30596 exited cleanly (1) 
D/dalvikvm( 129): GC_EXPLICIT freed 41K, 1% free 8825K/8896K, paused 2ms+2ms, t 
otal 23ms 
D/dalvikvm( 129): GC_EXPLICIT freed <1K, 1% free 8825K/8896K, paused 1ms+3ms, t 
otal 18ms 
D/dalvikvm( 129): GC_EXPLICIT freed <1K, 1% free 8825K/8896K, paused 2ms+2ms, t 
otal 18ms 
I/ActivityThread(30611): Pub com.tasteitandroidclient.mono.MonoRuntimeProvider._ 
_mono_init__: mono.MonoRuntimeProvider 
D/dalvikvm(30611): Trying to load lib /data/app-lib/com.tasteitandroidclient-2/l 
ibmonodroid.so 0x424a0288 
D/dalvikvm(30611): Added shared lib /data/app-lib/com.tasteitandroidclient-2/lib 
monodroid.so 0x424a0288 
W/libc (30611): WARNING: generic atexit() called from legacy shared library 
W/monodroid-gc(30611): GREF GC Threshold: 46800 
I/mvx  (30611): 0.02 Setup: PlatformServices start 
I/mono-stdout(30611): mvx:Diagnostic: 0.02 Setup: PlatformServices start 
I/mvx  (30611): 0.16 Setup: MvvmCross settings start 
I/mono-stdout(30611): mvx:Diagnostic: 0.16 Setup: MvvmCross settings start 
I/mvx  (30611): 0.16 Setup: Singleton Cache start 
I/mono-stdout(30611): mvx:Diagnostic: 0.16 Setup: Singleton Cache start 
I/mvx  (30611): 0.17 Setup: Bootstrap actions 
I/mono-stdout(30611): mvx:Diagnostic: 0.17 Setup: Bootstrap actions 
I/mvx  (30611): 0.25 Setup: StringToTypeParser start 
I/mono-stdout(30611): mvx:Diagnostic: 0.25 Setup: StringToTypeParser start 
I/mvx  (30611): 0.26 Setup: ViewModelFramework start 
I/mono-stdout(30611): mvx:Diagnostic: 0.26 Setup: ViewModelFramework start 
I/mvx  (30611): 0.26 Setup: PluginManagerFramework start 
I/mono-stdout(30611): mvx:Diagnostic: 0.26 Setup: PluginManagerFramework start 
I/mvx  (30611): 0.27 Ensuring Plugin is loaded for Cirrious.MvvmCross.Plugi 
ns.DownloadCache.PluginLoader 
I/mono-stdout(30611): mvx:Diagnostic: 0.27 Ensuring Plugin is loaded for Cirrio 
us.MvvmCross.Plugins.DownloadCache.PluginLoader 
I/mvx  (30611): 0.28 Loading plugin assembly: Cirrious.MvvmCross.Plugins.Do 
wnloadCache.Droid.dll 
I/mono-stdout(30611): mvx:Diagnostic: 0.28 Loading plugin assembly: Cirrious.Mv 
vmCross.Plugins.DownloadCache.Droid.dll 
I/mvx  (30611): 0.29 Ensuring Plugin is loaded for Cirrious.MvvmCross.Plugi 
ns.File.PluginLoader 
I/mono-stdout(30611): mvx:Diagnostic: 0.29 Ensuring Plugin is loaded for Cirrio 
us.MvvmCross.Plugins.File.PluginLoader 
I/mvx  (30611): 0.29 Loading plugin assembly: Cirrious.MvvmCross.Plugins.Fi 
le.Droid.dll 
I/mono-stdout(30611): mvx:Diagnostic: 0.29 Loading plugin assembly: Cirrious.Mv 
vmCross.Plugins.File.Droid.dll 
I/mvx  (30611): 0.30 Ensuring Plugin is loaded for Cirrious.MvvmCross.Plugi 
ns.PictureChooser.PluginLoader 
I/mono-stdout(30611): mvx:Diagnostic: 0.30 Ensuring Plugin is loaded for Cirrio 
us.MvvmCross.Plugins.PictureChooser.PluginLoader 
I/mvx  (30611): 0.30 Loading plugin assembly: Cirrious.MvvmCross.Plugins.Pi 
ctureChooser.Droid.dll 
I/mono-stdout(30611): mvx:Diagnostic: 0.30 Loading plugin assembly: Cirrious.Mv 
vmCross.Plugins.PictureChooser.Droid.dll 
I/mvx  (30611): 0.30 Setup: App start 
I/mono-stdout(30611): mvx:Diagnostic: 0.30 Setup: App start 
I/mvx  (30611): 0.43 Setup: ViewModelTypeFinder start 
I/mono-stdout(30611): mvx:Diagnostic: 0.43 Setup: ViewModelTypeFinder start 
I/mvx  (30611): 0.45 Setup: ViewsContainer start 
I/mono-stdout(30611): mvx:Diagnostic: 0.45 Setup: ViewsContainer start 
I/mvx  (30611): 0.45 Setup: ViewDispatcher start 
I/mono-stdout(30611): mvx:Diagnostic: 0.45 Setup: ViewDispatcher start 
I/mvx  (30611): 0.46 Setup: Views start 
I/mono-stdout(30611): mvx:Diagnostic: 0.46 Setup: Views start 
I/mvx  (30611): 0.51 Setup: CommandCollectionBuilder start 
I/mono-stdout(30611): mvx:Diagnostic: 0.51 Setup: CommandCollectionBuilder star 
t 
I/mvx  (30611): 0.51 Setup: NavigationSerializer start 
I/mono-stdout(30611): mvx:Diagnostic: 0.51 Setup: NavigationSerializer start 
I/mvx  (30611): 0.53 Setup: InpcInterception start 
I/mono-stdout(30611): mvx:Diagnostic: 0.53 Setup: InpcInterception start 
I/mvx  (30611): 0.53 Setup: LastChance start 
I/mono-stdout(30611): mvx:Diagnostic: 0.53 Setup: LastChance start 
I/MvxBind (30611): 0.56 Missing stylable field MvxControl 
I/mono-stdout(30611): MvxBind:Error: 0.56 Missing stylable field MvxControl 
I/MvxBind (30611): 0.56 Missing stylable field MvxControl_MvxTemplate 
I/mono-stdout(30611): MvxBind:Error: 0.56 Missing stylable field MvxControl_Mvx 
Template 
I/mvx  (30611): 1.32 Setup: Secondary end 
I/mono-stdout(30611): mvx:Diagnostic: 1.32 Setup: Secondary end 
I/mvx  (30611): 1.36 Attempting to load new ViewModel from Intent with Extr 
as 
I/mono-stdout(30611): mvx:Diagnostic: 1.36 Attempting to load new ViewModel fro 
m Intent with Extras 
I/mvx  (30611): 1.85 Problem initialising viewModel of type UserPageViewMod 
el - problem TargetInvocationException: Exception has been thrown by the target 
of an invocation. 
I/mvx  (30611):  at System.Reflection.MonoMethod.Invoke (System.Object 
obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] p 
arameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unkn 
own>:0 
I/mvx  (30611): at System.Reflection.MethodBase.Invoke (System.Object obj, 
System.Object[] parameters) [0x00000] in <filename unknown>:0 
I/mvx  (30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelExtensions.Cal 
lBundleMethod (IMvxViewModel viewModel, System.Reflection.MethodInfo methodInfo, 
IMvxBundle bundle) [0x00000] in <filename unknown>:0 
I/mvx  (30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelExtensions.Cal 
lBundleMethods (IMvxViewModel viewModel, System.String methodName, IMvxBundle bu 
ndle) [0x00000] in <filename unknown>:0 
I/mvx  (30611): at Cirrious.MvvmCross.ViewModels.MvxDefaultViewModelLocator 
.CallCustomInitMethods (IMvxViewModel viewModel, IMvxBundle parameterValues) [0x 
00000] in <filename unknown>:0 
I/mvx  (30611): at Cirrious.MvvmCross.ViewModels.MvxDefaultViewModelLocator 
.TryLoad (System.Type viewModelType, IMvxBundle parameterValues, IMvxBundle save 
dState, IMvxViewModel& viewModel) [0x00000] in <filename unknown>:0 
I/mvx  (30611): InnerException was NullReferenceException: Object reference n 
ot set to an instance of an object 
I/mvx  (30611):  at TasteITAndroidClient.UserPageViewModel.InitFromBund 
le (IMvxBundle parameters) [0x00000] in <filename unknown>:0 
I/mvx  (30611): at Cirrious.MvvmCross.ViewModels.MvxViewModel.Init (IMvxBun 
dle parameters) [0x00000] in <filename unknown>:0 
I/mvx  (30611): at (wrapper managed-to-native) System.Reflection.MonoMethod 
:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) 

I/mvx  (30611): at System.Reflection.MonoMethod.Invoke (System.Object obj, 
BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parame 
ters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>: 
0 
I/mono-stdout(30611): mvx:Warning: 1.85 Problem initialising viewModel of type 
UserPageViewModel - problem TargetInvocationException: Exception has been thrown 
by the target of an invocation. 
I/mono-stdout(30611):  at System.Reflection.MonoMethod.Invoke (System.Object 
obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] p 
arameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unkn 
own>:0 
I/mono-stdout(30611): at System.Reflection.MethodBase.Invoke (System.Object ob 
j, System.Object[] parameters) [0x00000] in <filename unknown>:0 
I/mono-stdout(30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelExtensions. 
CallBundleMethod (IMvxViewModel viewModel, System.Reflection.MethodInfo methodIn 
fo, IMvxBundle bundle) [0x00000] in <filename unknown>:0 
I/mono-stdout(30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelExtensions. 
CallBundleMethods (IMvxViewModel viewModel, System.String methodName, IMvxBundle 
bundle) [0x00000] in <filename unknown>:0 
I/mono-stdout(30611): at Cirrious.MvvmCross.ViewModels.MvxDefaultViewModelLoca 
tor.CallCustomInitMethods (IMvxViewModel viewModel, IMvxBundle parameterValues) 
[0x00000] in <filename unknown>:0 
I/mono-stdout(30611): at Cirrious.MvvmCross.ViewModels.MvxDefaultViewModelLoca 
tor.TryLoad (System.Type viewModelType, IMvxBundle parameterValues, IMvxBundle s 
avedState, IMvxViewModel& viewModel) [0x00000] in <filename unknown>:0 
I/mono-stdout(30611): InnerException was NullReferenceException: Object referenc 
e not set to an instance of an object 
I/mono-stdout(30611):  at TasteITAndroidClient.UserPageViewModel.InitFromBund 
le (IMvxBundle parameters) [0x00000] in <filename unknown>:0 
I/mono-stdout(30611): at Cirrious.MvvmCross.ViewModels.MvxViewModel.Init (IMvx 
Bundle parameters) [0x00000] in <filename unknown>:0 
I/mono-stdout(30611): at (wrapper managed-to-native) System.Reflection.MonoMet 
hod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exceptio 
n&) 
I/mono-stdout(30611): at System.Reflection.MonoMethod.Invoke (System.Object ob 
j, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] par 
ameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknow 
n>:0 
I/MonoDroid(30611): UNHANDLED EXCEPTION: Cirrious.CrossCore.Exceptions.MvxExcept 
ion: Failed to construct and initialize ViewModel for type TasteITAndroidClient. 
UserPageViewModel from locator MvxDefaultViewModelLocator - check MvxTrace for m 
ore information 
I/MonoDroid(30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelLoader.LoadView 
Model (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest,Cirrious.MvvmCross.View 
Models.IMvxBundle,Cirrious.MvvmCross.ViewModels.IMvxViewModelLocator) <0x00104> 
I/MonoDroid(30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelLoader.LoadView 
Model (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest,Cirrious.MvvmCross.View 
Models.IMvxBundle) <0x0008b> 
I/MonoDroid(30611): at Cirrious.MvvmCross.Droid.Views.MvxAndroidViewsContainer.V 
iewModelFromRequest (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest,Cirrious. 
MvvmCross.ViewModels.IMvxBundle) <0x0003b> 
I/MonoDroid(30611): at Cirrious.MvvmCross.Droid.Views.MvxAndroidViewsContainer.C 
reateViewModelFromIntent (Android.Content.Intent,Cirrious.MvvmCross.ViewModels.I 
MvxBundle) <0x000cf> 
I/MonoDroid(30611): at Cirrious.MvvmCross.Droid.Views.MvxAndroidViewsContainer.L 
oad (Android.Content.Intent,Cirrious.MvvmCross.ViewModels.IMvxBundle,System.Type 
) <0x001eb> 
I/MonoDroid(30611): at Cirrious.MvvmCross.Droid.Views.MvxActivityViewExtensions. 
LoadViewModel (Cirrious.MvvmCross.Droid.Views.IMvxAndroidView,Cirrious.MvvmCross 
.ViewModels.IMvxBundle) <0x00163> 
I/MonoDroid(30611): at Cirrious.MvvmCross.Droid.Views.MvxActivityViewExtensions/ 
<>c__DisplayClass3.<OnViewCreate>b__1() <0x0002b> 
I/MonoDroid(30611): at Cirrious.MvvmCross.Views.MvxViewExtensionMethods.OnViewCr 
eate (Cirrious.MvvmCross.Views.IMvxView,System.Func`1<Cirrious.MvvmCross.ViewMod 
els.IMvxViewModel>) <0x00073> 
I/MonoDroid(30611): at Cirrious.MvvmCross.Droid.Views.MvxActivityViewExtensions. 
OnViewCreate (Cirrious.MvvmCross.Droid.Views.IMvxAndroidView,Android.OS.Bundle) 
<0x001a7> 
I/MonoDroid(30611): at Cirrious.MvvmCross.Droid.Views.MvxActivityAdapter.EventSo 
urceOnCreateCalled (object,Cirrious.CrossCore.Core.MvxValueEventArgs`1<Android.O 
S.Bundle>) <0x0002b> 
I/MonoDroid(30611): at (wrapper delegate-invoke) System.EventHandler`1<Cirrious. 
CrossCore.Core.MvxValueEventArgs`1<Android.OS.Bundle>>.invoke_void__this___objec 
t_TEventArgs (object,Cirrious.CrossCore.Core.MvxValueEventArgs`1<Android.OS.Bund 
le>) <0x000ab> 
I/MonoDroid(30611): at Cirrious.CrossCore.Core.MvxDelegateExtensionMethods.Raise 
<Android.OS.Bundle> (System.EventHandler`1<Cirrious.CrossCore.Core.MvxValueEvent 
Args`1<Android.OS.Bundle>>,object,Android.OS.Bundle) <0x00063> 
I/MonoDroid(30611): at Cirrious.CrossCore.Droid.Views.MvxEventSourceActivity.OnC 
reate (Android.OS.Bundle) <0x00047> 
I/MonoDroid(30611): at TasteITAndroidClient.BaseActivity`1<TasteITAndroidClient. 
UserPageViewModel>.OnCreate (Android.OS.Bundle) <0x0001b> 
I/MonoDroid(30611): at TasteITAndroidClient.RecomendationFloatingMenuDisplayActi 
vity`1<TasteITAndroidClient.UserPageViewModel>.OnCreate (Android.OS.Bundle) <0x0 
001b> 
I/MonoDroid(30611): at TasteITAndroidClient.MyProfilePage.OnCreate (Android.OS.B 
undle) <0x0001b> 
I/MonoDroid(30611): at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (intp 
tr,intptr,intptr) <0x0005b> 
I/MonoDroid(30611): at (wrapper dynamic-method) object.b0555ae5-9a73-4bdf-a346-3 
59d6ab94c3d (intptr,intptr,intptr) <0x00043> 
D/dalvikvm(30611): GC_CONCURRENT freed 200K, 3% free 9016K/9248K, paused 3ms+2ms 
, total 17ms 
E/mono (30611): 
E/mono (30611): Unhandled Exception: 
E/mono (30611): Cirrious.CrossCore.Exceptions.MvxException: Failed to constru 
ct and initialize ViewModel for type TasteITAndroidClient.UserPageViewModel from 
locator MvxDefaultViewModelLocator - check MvxTrace for more information 
E/mono (30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelLoader.LoadVie 
wModel (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest request, IMvxBundle sa 
vedState, IMvxViewModelLocator viewModelLocator) [0x00000] in <filename unknown> 
:0 
E/mono (30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelLoader.LoadVie 
wModel (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest request, IMvxBundle sa 
vedState) [0x00000] in <filename unknown>:0 
E/mono (30611): at Cirrious.MvvmCross.Droid.Views.MvxAndroidViewsContainer. 
ViewModelFromRequest (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest viewMode 
lRequest, IMvxBundle savedState) [0x00000] in <filename unknown>:0 
E/mono (30611): at Cirrious.MvvmCross.Droid.Views.MvxAndroidViewsContainer. 
CreateViewModelFromIntent (Android.Content.Intent intent, IMvxBundle savedState) 
[0x00000] in <filename u 
E/mono-rt (30611): [ERROR] FATAL UNHANDLED EXCEPTION: Cirrious.CrossCore.Excepti 
ons.MvxException: Failed to construct and initialize ViewModel for type TasteITA 
ndroidClient.UserPageViewModel from locator MvxDefaultViewModelLocator - check M 
vxTrace for more information 
E/mono-rt (30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelLoader.LoadVie 
wModel (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest request, IMvxBundle sa 
vedState, IMvxViewModelLocator viewModelLocator) [0x00000] in <filename unknown> 
:0 
E/mono-rt (30611): at Cirrious.MvvmCross.ViewModels.MvxViewModelLoader.LoadVie 
wModel (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest request, IMvxBundle sa 
vedState) [0x00000] in <filename unknown>:0 
E/mono-rt (30611): at Cirrious.MvvmCross.Droid.Views.MvxAndroidViewsContainer. 
ViewModelFromRequest (Cirrious.MvvmCross.ViewModels.MvxViewModelRequest viewMode 
lRequest, IMvxBundle savedState) [0x00000] in <filename unknown>:0 
E/mono-rt (30611): at Cirrious.MvvmCross.Droid.Views.MvxAndroidViewsContainer. 
CreateViewModelFromIntent (Android.Content.Intent intent, IMvxBundle savedState) 
[0x00000] i 
I/ActivityManager( 389): Process com.tasteitandroidclient (pid 30611) has died.
我有一個很難理解這是什麼問題...它發生在每一個活動。
任何ides？
來源
2014-03-27 Amit Raz
跟蹤顯示未處理的異常而創建UserPageViewModel
它進一步顯示「的InnerException是的NullReferenceException：對象和借鑑 E不設置到對象 I /單標準輸出（30611）的一個實例：在TasteITAndroidClient .UserPageViewModel.InitFromBundle（IMvxBundle參數）[0x00000]「
如果您添加更多跟蹤到您的UserPageViewModel構造函數和Init方法，那麼這可能有助於找出問題所在。
來源
2014-03-27 21:13:28 Stuart
我會添加痕跡添加看看誰是罪魁禍首......謝謝！ –
monodroid mvvmcross應用程序無法恢復

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