System.NotSupportedException: ToModel of type IdentityServer4.MongoDB.Mappers.ApiScopeMappers is not supported in the expression tree {document}.ToModel().

[hilong-w]

hello, what the reases?

System.NotSupportedException: ToModel of type IdentityServer4.MongoDB.Mappers.ApiScopeMappers is not supported in the expression tree {document}.ToModel().
at MongoDB.Driver.Linq.Translators.AggregateLanguageTranslator.TranslateMethodCall(MethodCallExpression node)
at MongoDB.Driver.Linq.Translators.AggregateLanguageTranslator.TranslateValue(Expression node)
at MongoDB.Driver.Linq.Translators.AggregateLanguageTranslator.TranslateDocumentWrappedField(FieldAsDocumentExpression expression)
at MongoDB.Driver.Linq.Translators.AggregateLanguageTranslator.TranslateValue(Expression node)
at MongoDB.Driver.Linq.Translators.AggregateLanguageTranslator.Translate(Expression node, ExpressionTranslationOptions translationOptions)
at MongoDB.Driver.Linq.Translators.QueryableTranslator.TranslateProjectValue(Expression selector)
at MongoDB.Driver.Linq.Translators.QueryableTranslator.TranslateSelect(SelectExpression node)
at MongoDB.Driver.Linq.Translators.QueryableTranslator.TranslatePipeline(PipelineExpression node)
at MongoDB.Driver.Linq.Translators.QueryableTranslator.Translate(Expression node, IBsonSerializerRegistry serializerRegistry, ExpressionTranslationOptions translationOptions)
at MongoDB.Driver.Linq.MongoQueryProviderImpl1.Translate(Expression expression) at MongoDB.Driver.Linq.MongoQueryProviderImpl1.Execute(Expression expression)
at MongoDB.Driver.Linq.MongoQueryableImpl2.GetEnumerator() at System.Linq.Enumerable.SelectEnumerableIterator2.MoveNext()
at System.Linq.Lookup2.Create(IEnumerable1 source, Func2 keySelector, IEqualityComparer1 comparer)
at System.Linq.GroupedEnumerable2.GetEnumerator() at System.Linq.Enumerable.WhereSelectEnumerableIterator2.ToArray()
at IdentityServer4.Stores.IResourceStoreExtensions.GetDuplicates(IEnumerable1 names) at IdentityServer4.Stores.IResourceStoreExtensions.Validate(IEnumerable1 identity, IEnumerable1 apiResources, IEnumerable1 apiScopes)
at IdentityServer4.Stores.IResourceStoreExtensions.FindResourcesByScopeAsync(IResourceStore store, IEnumerable1 scopeNames) at IdentityServer4.Stores.IResourceStoreExtensions.FindEnabledResourcesByScopeAsync(IResourceStore store, IEnumerable1 scopeNames)
at IdentityServer4.Validation.DefaultResourceValidator.ValidateRequestedResourcesAsync(ResourceValidationRequest request)
at IdentityServer4.Validation.TokenRequestValidator.ValidateRequestedScopesAsync(NameValueCollection parameters, Boolean ignoreImplicitIdentityScopes, Boolean ignoreImplicitOfflineAccess)
at IdentityServer4.Validation.TokenRequestValidator.ValidateClientCredentialsRequestAsync(NameValueCollection parameters)
at IdentityServer4.Validation.TokenRequestValidator.RunValidationAsync(Func`2 validationFunc, NameValueCollection parameters)
at IdentityServer4.Validation.TokenRequestValidator.ValidateRequestAsync(NameValueCollection parameters, ClientSecretValidationResult clientValidationResult)
at IdentityServer4.Endpoints.TokenEndpoint.ProcessTokenRequestAsync(HttpContext context)
at IdentityServer4.Endpoints.TokenEndpoint.ProcessAsync(HttpContext context)
at IdentityServer4.Hosting.IdentityServerMiddleware.Invoke(HttpContext context, IEndpointRouter router, IUserSession session, IEventService events, IBackChannelLogoutService backChannelLogoutService)
at IdentityServer4.Hosting.IdentityServerMiddleware.Invoke(HttpContext context, IEndpointRouter router, IUserSession session, IEventService events, IBackChannelLogoutService backChannelLogoutService)
at IdentityServer4.Hosting.MutualTlsEndpointMiddleware.Invoke(HttpContext context, IAuthenticationSchemeProvider schemes)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at IdentityServer4.Hosting.BaseUrlMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)