MAUI App crashes when built in Release mode

MongoDB Atlas App Services & Realm Atlas Device Sync
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1

I have an MVVM MAUI app that is working fine when running in Visual Studio in debug mode. If I build for release and deploy and run, it crashes when a change in the UI causes MVVM to tell sync to send back a change. The error is “Cannot modify managed objects outside of a write transaction.”. I know what that message means but here it is when Realm code is being notified of a data change in the UI via MVVM so it is not my own code that is changing data without a transaction.

To test this theory, I ran the “House Moving Assistant” sample app as demo’ed by @Luce_Carter at the .Net MAUI conference and it has the same problem when I build it for release. Again it works fine when running in Visual Studio in debug mode. In this sample app, I can add tasks but when I tap one to update its status the app crashes and log cat shows the above error. I’ll include part of the log below.

I see the same on a Samsung phone (Android 12) and a Samsung tablet (Android 11).

John.

Log excerpts 
08-20 23:07:22.724 20309 20309 E AndroidRuntime: FATAL EXCEPTION: main
08-20 23:07:22.724 20309 20309 E AndroidRuntime: Process: uk.co.lucyscarter.housemovingassistant, PID: 20309
08-20 23:07:22.724 20309 20309 E AndroidRuntime: android.runtime.JavaProxyThrowable: System.Reflection.TargetInvocationException: Arg_TargetInvocationException
08-20 23:07:22.724 20309 20309 E AndroidRuntime:  ---> Realms.Exceptions.RealmInvalidTransactionException: Cannot modify managed objects outside of a write transaction.
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Realms.NativeException.ThrowIfNecessary(Func`2 overrider)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Realms.ObjectHandle.SetValue(String propertyName, Metadata metadata, RealmValue& value, Realm realm)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Realms.RealmObjectBase.SetValue(String propertyName, RealmValue val)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at HouseMovingAssistant.Models.MovingTask.set_Name(String value)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at HouseMovingAssistant.Views.EditTaskPage.<InitializeComponent>typedBindingsM__1(EditMovingTaskPageViewModel , String )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.Internals.TypedBinding`2[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ApplyCore(Object sourceObject, BindableObject target, BindableProperty property, Boolean fromTarget)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.Internals.TypedBinding`2[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].Apply(Boolean fromTarget)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, Boolean silent)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.Internals.TypedBinding`2[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ApplyCore(Object sourceObject, BindableObject target, BindableProperty property, Boolean fromTarget)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.Internals.TypedBinding`2[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].Apply(Boolean fromTarget)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.Internals.TypedBinding`2.PropertyChangedProxy[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<OnPropertyChanged>b__16_0()
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.DispatcherExtensions.DispatchIfRequired(IDispatcher dispatcher, Action action)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.Internals.TypedBinding`2.PropertyChangedProxy[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].OnPropertyChanged(Object sender, PropertyChangedEventArgs e)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.BindingExpression.WeakPropertyChangedProxy.OnPropertyChanged(Object sender, PropertyChangedEventArgs e)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at CommunityToolkit.Mvvm.ComponentModel.ObservableObject.OnPropertyChanged(PropertyChangedEventArgs )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel.set_MovingTask(MovingTask value)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at System.Reflection.RuntimeMethodInfo.Invoke(Object , BindingFlags , Binder , Object[] , CultureInfo )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    Exception_EndOfInnerExceptionStack
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at System.Reflection.RuntimeMethodInfo.Invoke(Object , BindingFlags , Binder , Object[] , CultureInfo )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at System.Reflection.RuntimePropertyInfo.SetValue(Object , Object , BindingFlags , Binder , Object[] , CultureInfo )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at System.Reflection.PropertyInfo.SetValue(Object , Object , Object[] )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at System.Reflection.PropertyInfo.SetValue(Object , Object )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.ShellContent.ApplyQueryAttributes(Object content, ShellRouteParameters query, ShellRouteParameters oldQuery)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.ShellContent.ApplyQueryAttributes(Object content, ShellRouteParameters query, ShellRouteParameters oldQuery)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.ShellContent.OnQueryAttributesPropertyChanged(BindableObject bindable, Object oldValue, Object newValue)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, Boolean silent)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.BindableObject.SetValue(BindableProperty property, Object value, Boolean fromStyle, Boolean checkAccess)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.BindableObject.SetValue(BindableProperty property, Object value)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.ShellNavigationManager.ApplyQueryAttributes(Element element, ShellRouteParameters query, Boolean isLastItem, Boolean isPopping)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.ShellSection.GetOrCreateFromRoute(String route, ShellRouteParameters queryData, IServiceProvider services, Boolean isLast, Boolean isPopping)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.ShellSection.GoToAsync(ShellNavigationRequest request, ShellRouteParameters queryData, IServiceProvider services, Nullable`1 animate, Boolean isRelativePopping)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Microsoft.Maui.Controls.ShellNavigationManager.GoToAsync(ShellNavigationParameters shellNavigationParameters, ShellNavigationRequest navigationRequest)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at HouseMovingAssistant.ViewModels.MovingTasksPageViewModel.EditTask(MovingTask task)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at CommunityToolkit.Mvvm.Input.AsyncRelayCommand.AwaitAndThrowIfFailed(Task )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Android.App.SyncContext.<>c__DisplayClass2_0.<Post>b__0()
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Java.Lang.Thread.RunnableImplementor.Run()
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Java.Lang.IRunnableInvoker.n_Run(IntPtr , IntPtr )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:    at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PP_V(_JniMarshal_PP_V , IntPtr , IntPtr )
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at mono.java.lang.RunnableImplementor.n_run(Native Method)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:30)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at android.os.Handler.handleCallback(Handler.java:938)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at android.os.Handler.dispatchMessage(Handler.java:99)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at android.os.Looper.loop(Looper.java:247)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at android.app.ActivityThread.main(ActivityThread.java:8676)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at java.lang.reflect.Method.invoke(Native Method)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
08-20 23:07:22.724 20309 20309 E AndroidRuntime:        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
08-20 23:07:22.728 20309 20309 W monodroid-assembly: Shared library 'liblog' not loaded, p/invoke '__android_log_print' may fail
08-20 23:07:22.728 20309 20309 I MonoDroid: UNHANDLED EXCEPTION:
08-20 23:07:22.733 20309 20309 I MonoDroid: Android.Runtime.JavaProxyThrowable: Exception_WasThrown, Android.Runtime.JavaProxyThrowable
08-20 23:07:22.733 20309 20309 I MonoDroid:
08-20 23:07:22.733 20309 20309 I MonoDroid:   --- End of managed Android.Runtime.JavaProxyThrowable stack trace ---
08-20 23:07:22.733 20309 20309 I MonoDroid: android.runtime.JavaProxyThrowable: System.Reflection.TargetInvocationException: Arg_TargetInvocationException
08-20 23:07:22.733 20309 20309 I MonoDroid:  ---> Realms.Exceptions.RealmInvalidTransactionException: Cannot modify managed objects outside of a write transaction.
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Realms.NativeException.ThrowIfNecessary(Func`2 overrider)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Realms.ObjectHandle.SetValue(String propertyName, Metadata metadata, RealmValue& value, Realm realm)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Realms.RealmObjectBase.SetValue(String propertyName, RealmValue val)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at HouseMovingAssistant.Models.MovingTask.set_Name(String value)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at HouseMovingAssistant.Views.EditTaskPage.<InitializeComponent>typedBindingsM__1(EditMovingTaskPageViewModel , String )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.Internals.TypedBinding`2[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ApplyCore(Object sourceObject, BindableObject target, BindableProperty property, Boolean fromTarget)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.Internals.TypedBinding`2[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].Apply(Boolean fromTarget)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, Boolean silent)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.Internals.TypedBinding`2[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ApplyCore(Object sourceObject, BindableObject target, BindableProperty property, Boolean fromTarget)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.Internals.TypedBinding`2[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].Apply(Boolean fromTarget)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.Internals.TypedBinding`2.PropertyChangedProxy[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<OnPropertyChanged>b__16_0()
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.DispatcherExtensions.DispatchIfRequired(IDispatcher dispatcher, Action action)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.Internals.TypedBinding`2.PropertyChangedProxy[[HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel, HouseMovingAssistant, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].OnPropertyChanged(Object sender, PropertyChangedEventArgs e)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.BindingExpression.WeakPropertyChangedProxy.OnPropertyChanged(Object sender, PropertyChangedEventArgs e)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at CommunityToolkit.Mvvm.ComponentModel.ObservableObject.OnPropertyChanged(PropertyChangedEventArgs )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at HouseMovingAssistant.ViewModels.EditMovingTaskPageViewModel.set_MovingTask(MovingTask value)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at System.Reflection.RuntimeMethodInfo.Invoke(Object , BindingFlags , Binder , Object[] , CultureInfo )
08-20 23:07:22.733 20309 20309 I MonoDroid:    Exception_EndOfInnerExceptionStack
08-20 23:07:22.733 20309 20309 I MonoDroid:    at System.Reflection.RuntimeMethodInfo.Invoke(Object , BindingFlags , Binder , Object[] , CultureInfo )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at System.Reflection.RuntimePropertyInfo.SetValue(Object , Object , BindingFlags , Binder , Object[] , CultureInfo )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at System.Reflection.PropertyInfo.SetValue(Object , Object , Object[] )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at System.Reflection.PropertyInfo.SetValue(Object , Object )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.ShellContent.ApplyQueryAttributes(Object content, ShellRouteParameters query, ShellRouteParameters oldQuery)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.ShellContent.ApplyQueryAttributes(Object content, ShellRouteParameters query, ShellRouteParameters oldQuery)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.ShellContent.OnQueryAttributesPropertyChanged(BindableObject bindable, Object oldValue, Object newValue)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, Boolean silent)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.BindableObject.SetValue(BindableProperty property, Object value, Boolean fromStyle, Boolean checkAccess)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.BindableObject.SetValue(BindableProperty property, Object value)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.ShellNavigationManager.ApplyQueryAttributes(Element element, ShellRouteParameters query, Boolean isLastItem, Boolean isPopping)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.ShellSection.GetOrCreateFromRoute(String route, ShellRouteParameters queryData, IServiceProvider services, Boolean isLast, Boolean isPopping)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.ShellSection.GoToAsync(ShellNavigationRequest request, ShellRouteParameters queryData, IServiceProvider services, Nullable`1 animate, Boolean isRelativePopping)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Microsoft.Maui.Controls.ShellNavigationManager.GoToAsync(ShellNavigationParameters shellNavigationParameters, ShellNavigationRequest navigationRequest)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at HouseMovingAssistant.ViewModels.MovingTasksPageViewModel.EditTask(MovingTask task)
08-20 23:07:22.733 20309 20309 I MonoDroid:    at CommunityToolkit.Mvvm.Input.AsyncRelayCommand.AwaitAndThrowIfFailed(Task )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Android.App.SyncContext.<>c__DisplayClass2_0.<Post>b__0()
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Java.Lang.Thread.RunnableImplementor.Run()
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Java.Lang.IRunnableInvoker.n_Run(IntPtr , IntPtr )
08-20 23:07:22.733 20309 20309 I MonoDroid:    at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PP_V(_JniMarshal_PP_V , IntPtr , IntPtr )
08-20 23:07:22.733 20309 20309 I MonoDroid:     at mono.java.lang.RunnableImplementor.n_run(Native Method)
08-20 23:07:22.733 20309 20309 I MonoDroid:     at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:30)
08-20 23:07:22.733 20309 20309 I MonoDroid:     at android.os.Handler.handleCallback(Handler.java:938)
08-20 23:07:22.733 20309 20309 I MonoDroid:     at android.os.Handler.dispatchMessage(Handler.java:99)
08-20 23:07:22.733 20309 20309 I MonoDroid:     at android.os.Looper.loop(Looper.java:247)
08-20 23:07:22.733 20309 20309 I MonoDroid:     at android.app.ActivityThread.main(ActivityThread.java:8676)
08-20 23:07:22.733 20309 20309 I MonoDroid:     at java.lang.reflect.Method.invoke(Native Method)
08-20 23:07:22.733 20309 20309 I MonoDroid:     at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
08-20 23:07:22.733 20309 20309 I MonoDroid:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
08-20 23:07:22.733 20309 20309 I MonoDroid:
08-20 23:07:22.733 20309 20309 I MonoDroid:   --- End of managed Android.Runtime.JavaProxyThrowable stack trace ---
3

sorry about posting big message with logcat info. I can see now that was stupid because it’s makes replies difficult. I’m new here and just read about the option to hide parts of a post. If I could edit the original post I’d hide the logcat. If I could delete it and re-post, I’d do that but delete keeps failing.

4

No worries, I’ll see if a moderator can edit the post for you, but in the meantime, the most likely reason for this is using compiled bindings in release mode. Realm doesn’t support seamless data binding with compiled bindings because there’s no way to detect that a change is coming from the binding engine. We’re exploring several approaches to support it but don’t have anything ready yet. The workaround is to disable compiled bindings either globally or at least those that are bound to realm objects.

1 Like
5

Thank you for the quick reply. A quick test does appear to show compiled bindings were the problem. It is a shame to switch them off because they help performance. When I saw the docs show you can switch it off with:

[XamlCompilation (XamlCompilationOptions.Skip)]
public partial class MyPage : ContentPage
{
…
}

I thought I could switch it off for the pages where I use Realm, but I get a build error if there is more than one of those.
I can definitely live with this until there is a better solution.
John.

6

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