InvalidOperationException in Lazy<T>: ValueFactory attempted to access the Value property of this instance.

See original GitHub issue

In some circumstances when LifetimeScope.Build() is called, one of VContainer’s private Lazy<object>s will throw an InvalidOperationException upon accessing its Value property as promised in its documentation. Here’s my stack trace:

[19:38:18:120] InvalidOperationException: ValueFactory attempted to access the Value property of this instance.
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.ScopedContainer.CreateTrackedInstance (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:110)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:77)
VContainer.ScopedContainer.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:57)
VContainer.IObjectResolverExtensions.ResolveOrParameter (VContainer.IObjectResolver resolver, System.Type parameterType, System.String parameterName, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/IObjectResolverExtensions.cs:32)
VContainer.Internal.ReflectionInjector.CreateInstance (VContainer.IObjectResolver resolver, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/ReflectionInjector.cs:39)
VContainer.Internal.Registration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/Registration.cs:38)
VContainer.ScopedContainer+<>c__DisplayClass10_0.<.ctor>b__1 () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:50)
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.ScopedContainer.CreateTrackedInstance (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:110)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:77)
VContainer.ScopedContainer.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:57)
VContainer.IObjectResolverExtensions.Resolve[T] (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/IObjectResolverExtensions.cs:8)
CorundumGames.Chromavaders.Tests.Attributes.SimulatedInputAttribute.SimulatedInputServiceFactory (VContainer.IObjectResolver container) (at Assets/Scripts/Tests/Common/SimulatedInput/SimulatedInputAttribute.cs:87)
VContainer.Internal.FuncRegistration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/FuncRegistration.cs:34)
VContainer.ScopedContainer+<>c__DisplayClass10_0.<.ctor>b__1 () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:50)
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.ScopedContainer.CreateTrackedInstance (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:110)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:77)
VContainer.ScopedContainer.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:57)
VContainer.IObjectResolverExtensions.ResolveOrParameter (VContainer.IObjectResolver resolver, System.Type parameterType, System.String parameterName, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/IObjectResolverExtensions.cs:32)
VContainer.Internal.ReflectionInjector.CreateInstance (VContainer.IObjectResolver resolver, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/ReflectionInjector.cs:39)
VContainer.Internal.Registration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/Registration.cs:38)
VContainer.ScopedContainer+<>c__DisplayClass10_0.<.ctor>b__1 () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:50)
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.ScopedContainer.CreateTrackedInstance (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:110)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:74)
VContainer.ScopedContainer.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:57)
VContainer.IObjectResolverExtensions.ResolveOrParameter (VContainer.IObjectResolver resolver, System.Type parameterType, System.String parameterName, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/IObjectResolverExtensions.cs:32)
VContainer.Internal.ReflectionInjector.CreateInstance (VContainer.IObjectResolver resolver, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/ReflectionInjector.cs:39)
VContainer.Internal.Registration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/Registration.cs:38)
VContainer.ScopedContainer+<>c__DisplayClass10_0.<.ctor>b__1 () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:50)
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.ScopedContainer.CreateTrackedInstance (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:110)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:74)
VContainer.ScopedContainer.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:57)
VContainer.IObjectResolverExtensions.ResolveOrParameter (VContainer.IObjectResolver resolver, System.Type parameterType, System.String parameterName, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/IObjectResolverExtensions.cs:32)
VContainer.Internal.ReflectionInjector.CreateInstance (VContainer.IObjectResolver resolver, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/ReflectionInjector.cs:39)
VContainer.Internal.Registration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/Registration.cs:38)
VContainer.ScopedContainer+<>c__DisplayClass10_0.<.ctor>b__1 () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:50)
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.ScopedContainer.CreateTrackedInstance (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:110)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:77)
VContainer.Internal.CollectionRegistration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Internal/Registration.cs:97)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:65)
VContainer.ScopedContainer.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:57)
VContainer.IObjectResolverExtensions.Resolve[T] (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/IObjectResolverExtensions.cs:8)
VContainer.Unity.EntryPointDispatcher.Dispatch () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Unity/EntryPointDispatcher.cs:34)
VContainer.Unity.EntryPointsBuilder+<>c.<EnsureDispatcherRegistered>b__0_0 (VContainer.IObjectResolver container) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Unity/ContainerBuilderUnityExtensions.cs:20)
VContainer.ContainerBuilder.EmitCallbacks (VContainer.IObjectResolver container) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/ContainerBuilder.cs:124)
VContainer.ScopedContainerBuilder.BuildScope () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/ContainerBuilder.cs:34)
VContainer.ScopedContainer.CreateScope (System.Action`1[T] installation) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:88)
VContainer.Container.CreateScope (System.Action`1[T] installation) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Container.cs:183)
VContainer.Unity.LifetimeScope.Build () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Unity/LifetimeScope.cs:163)
VContainer.Unity.LifetimeScope.Awake () (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Unity/LifetimeScope.cs:130)
UnityEngine.GameObject:SetActive(Boolean)
VContainer.Unity.LifetimeScope:CreateChild(IInstaller) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Unity/LifetimeScope.cs:193)
VContainer.Unity.LifetimeScope:CreateChild(Action`1) (at Library/PackageCache/jp.hadashikick.vcontainer@1.8.4/Runtime/Unity/LifetimeScope.cs:198)
CorundumGames.Chromavaders.Tests.Common.<<SetUpTestScope>b__7_0>d:MoveNext() (at Assets/Scripts/Tests/Common/ScopedTestFixture.cs:94)
Cysharp.Threading.Tasks.CompilerServices.AsyncUniTask`1:Run() (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/CompilerServices/StateMachineRunner.cs:189)
Cysharp.Threading.Tasks.AwaiterActions:Continuation(Object) (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/UniTask.cs:21)
Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1:TrySetResult(ITestScene) (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/UniTaskCompletionSource.cs:139)
Cysharp.Threading.Tasks.CompilerServices.AsyncUniTask`2:SetResult(ITestScene) (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/CompilerServices/StateMachineRunner.cs:328)
Cysharp.Threading.Tasks.CompilerServices.AsyncUniTaskMethodBuilder`1:SetResult(ITestScene) (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/CompilerServices/AsyncUniTaskMethodBuilder.cs:201)
CorundumGames.Chromavaders.Tests.Attributes.<LoadSceneAsyncPrivate>d__5:MoveNext() (at Assets/Scripts/Tests/Common/Attributes/Scene/SceneAddressAttribute.cs:48)
Cysharp.Threading.Tasks.CompilerServices.AsyncUniTask`2:Run() (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/CompilerServices/StateMachineRunner.cs:313)
Cysharp.Threading.Tasks.AwaiterActions:Continuation(Object) (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/UniTask.cs:21)
Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1:TrySetResult(SceneInstance) (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/UniTaskCompletionSource.cs:139)
Cysharp.Threading.Tasks.AsyncOperationHandleConfiguredSource`1:Continuation(AsyncOperationHandle`1) (at Library/PackageCache/com.cysharp.unitask@2.2.5/Runtime/External/Addressables/AddressablesAsyncExtensions.cs:333)
DelegateList`1:Invoke(AsyncOperationHandle`1) (at Library/PackageCache/com.unity.addressables@1.18.9/Runtime/ResourceManager/Util/DelegateList.cs:69)
UnityEngine.ResourceManagement.AsyncOperations.AsyncOperationBase`1:UpdateCallback(Single)
DelegateList`1:Invoke(Single) (at Library/PackageCache/com.unity.addressables@1.18.9/Runtime/ResourceManager/Util/DelegateList.cs:69)
UnityEngine.ResourceManagement.ResourceManager:Update(Single)
MonoBehaviourCallbackHooks:Update() (at Library/PackageCache/com.unity.addressables@1.18.9/Runtime/ResourceManager/Util/MonoBehaviourCallbackHooks.cs:26)

This occurs reliably, but I don’t know the conditions under which it does so (or else I’d provide a minimal code sample). What information can I give you about my dependency registrations or their implementations that would be useful?

Issue Analytics

  • State:closed
  • Created 2 years ago
  • Comments:7 (6 by maintainers)

github_iconTop GitHub Comments

1reaction
octo127commented, Jul 30, 2021

I had this exception too. The cause was also circular reference, and I already solved it. Here is an example code to reproduce it.

using VContainer;
using VContainer.Unity;

public class GameLifetimeScope : LifetimeScope
{
    protected override void Configure(IContainerBuilder builder)
    {
        builder.Register<ModelA>(Lifetime.Singleton);
        builder.RegisterEntryPoint<ModelB>().As<IModelBInterface>();
    }
}

interface IModelBInterface
{
}

class ModelA
{
    [Inject]
    private ModelA(IModelBInterface modelBInterface)
    {
    }
}

class ModelB : IInitializable, IModelBInterface
{
    [Inject]
    private ModelB(ModelA modelA)
    {
    }

    public void Initialize()
    {
    }
}

And here’s the stack trace.

InvalidOperationException: ValueFactory attempted to access the Value property of this instance.
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.Container.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:168)
VContainer.Container.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:154)
VContainer.IObjectResolverExtensions.ResolveOrParameter (VContainer.IObjectResolver resolver, System.Type parameterType, System.String parameterName, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/IObjectResolverExtensions.cs:32)
VContainer.Internal.ReflectionInjector.CreateInstance (VContainer.IObjectResolver resolver, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Internal/ReflectionInjector.cs:39)
VContainer.Internal.Registration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Internal/Registration.cs:38)
VContainer.Container+<>c__DisplayClass5_0.<.ctor>b__1 () (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:146)
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.Container.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:168)
VContainer.Container.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:154)
VContainer.IObjectResolverExtensions.ResolveOrParameter (VContainer.IObjectResolver resolver, System.Type parameterType, System.String parameterName, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/IObjectResolverExtensions.cs:32)
VContainer.Internal.ReflectionInjector.CreateInstance (VContainer.IObjectResolver resolver, System.Collections.Generic.IReadOnlyList`1[T] parameters) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Internal/ReflectionInjector.cs:39)
VContainer.Internal.Registration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Internal/Registration.cs:38)
VContainer.Container+<>c__DisplayClass5_0.<.ctor>b__1 () (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:146)
System.Lazy`1[T].CreateValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].LazyInitValue () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Lazy`1[T].get_Value () (at <695d1cc93cca45069c528c15c9fdd749>:0)
VContainer.Container.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:168)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:69)
VContainer.Internal.CollectionRegistration.SpawnInstance (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Internal/Registration.cs:97)
VContainer.ScopedContainer.Resolve (VContainer.IRegistration registration) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:65)
VContainer.ScopedContainer.Resolve (System.Type type) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Container.cs:57)
VContainer.IObjectResolverExtensions.Resolve[T] (VContainer.IObjectResolver resolver) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/IObjectResolverExtensions.cs:8)
VContainer.Unity.EntryPointDispatcher.Dispatch () (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Unity/EntryPointDispatcher.cs:34)
VContainer.Unity.EntryPointsBuilder+<>c.<EnsureDispatcherRegistered>b__0_0 (VContainer.IObjectResolver container) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Unity/ContainerBuilderUnityExtensions.cs:20)
VContainer.ContainerBuilder.EmitCallbacks (VContainer.IObjectResolver container) (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/ContainerBuilder.cs:124)
VContainer.ContainerBuilder.Build () (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/ContainerBuilder.cs:79)
VContainer.Unity.LifetimeScope.Build () (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Unity/LifetimeScope.cs:173)
VContainer.Unity.LifetimeScope.Awake () (at Library/PackageCache/jp.hadashikick.vcontainer@55d2d64a88/Runtime/Unity/LifetimeScope.cs:130)
0reactions
hadashiAcommented, Oct 3, 2021

Fixed #311

Read more comments on GitHub >

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