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Internal Server Error

12/02/2022
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Internal Server Error

InvalidOperationException: Sekvensen indeholder ingen elementer

Billede

System.Linq.Enumerable.Single (IEnumerable kilde)


  • InvalidOperationException: Sekvensen indeholder ingen elementer


    • System.Linq.Enumerable.Single (IEnumerable kilde)



    • lambda_metode(lukning)



    • Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider+ResultEnumerable .GetEnumerator()



    • Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider._TrackEntities (IEnumerable resultater, QueryContext queryContext, IList entityTrackingInfos, IList > entityAccessors)+MoveNext()



    • Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider+ExceptionInterceptor +EnumeratorExceptionInterceptor.MoveNext()



    • System.Linq.Enumerable.TryGetFirst (IEnumerable kilde, out bool fundet)



    • System.Linq.Enumerable.First (IEnumerable kilde)



    • Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler+<>c__DisplayClass15_1 . b__0(QueryContext qc)



    • Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.Execute (Udtryksforespørgsel)



    • Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.Execute (Udtryksudtryk)



    • System.Linq.Queryable.Single (IQueryable kilde)



    • BlockchainNews.Pages.PostModel.OnGet(streng-id, streng-id2) i news.cshtml.cs



    • lambda_metode(Lukning, objekt, objekt[])



    • Microsoft.AspNetCore.Mvc.RazorPages.Internal.ExecutorFactory+ActionResultHandlerMethod.Execute(objektmodtager, objekt[]-argumenter)



    • Microsoft.AspNetCore.Mvc.RazorPages.Internal.PageActionInvoker.InvokeHandlerMethodAsync()



    • Microsoft.AspNetCore.Mvc.RazorPages.Internal.PageActionInvoker.InvokeNextPageFilterAsync()



    • Microsoft.AspNetCore.Mvc.RazorPages.Internal.PageActionInvoker.Rethrow(PageHandlerExecutedContext-kontekst)



    • Microsoft.AspNetCore.Mvc.RazorPages.Internal.PageActionInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)



    • Microsoft.AspNetCore.Mvc.RazorPages.Internal.PageActionInvoker.InvokeInnerFilterAsync()



    • Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()



    • Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext-kontekst)



    • Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)



    • Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()



    • Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()



    • Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)



    • Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)




  • System.InvalidOperationException: Sequence indeholder ingen elementer ved System.Linq.Enumerable.Single[TSource](IEnumerable`1 source) ved lambda_method(Closure ) hos Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ResultEnumerable`1.GetEnumerator`1. .EntityFrameworkCore.Query.Internal.LinqOperatorProvider._TrackEntities[TOut,TIn](IEnumerable`1 results, QueryContext queryContext, IList`1 entityTrackingInfos, IList`1 entityAccessors)+MoveNext.Exception.Interq `1.EnumeratorExceptionInterceptor.MoveNext() ved System.Linq.Enumerable.TryGetFirst[TSource](IEnumerable`1 kilde, Boolean& fundet) på System.Linq.Enumerable.First[TSource](IEnumerable`15 source) hos Microsoft.EntityFrameworkCore. Query.Internal.QueryCompiler.<>c__DisplayClass1_1`0. b__1(QueryContext qc) hos Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.Execute[TResult](Expression query) hos Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.Execute[TResult](Expression expression.Query.L.inq.Query Single[TSource](IQueryable`2 source) på BlockchainNews.Pages.PostModel.OnGet(String id, String id1) i D:\a\75\s\BlockchainNews\Pages\news.cshtml.cs:line XNUMX at lambda_method( Lukning , Objekt , Objekt[] ) hos Microsoft.AspNetCore.Mvc.RazorPages.Internal.ExecutorFactory.ActionResultHandlerMethod.Execute(Objektmodtager, Objekt[]-argumenter) hos Microsoft.AspNetCore.Mvc.RazorPages.InnHvoker.Invoker.InvokerAction(Internal.PageAction) Microsoft.AspNetCore.Mvc.RazorPages.Internal.PageActionInvoker.InvokeNextPageFilterAsync() hos Microsoft.AspNetCore.Mvc.RazorPages.Internal.PageActionInvoker.Rethrow(PageHandlerExecutedContextAspNet.Innext.Microsoft.Razer , Omfang og omfang, Objekt og tilstand, Boolean& isCompleted) hos Microsoft.AspNetCore.Mvc.RazorPages.Internal.PageActionInvoker.InvokeInnerFilterAsync() hos Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter() hos Microsoft.AspResourceCoren.Contexte Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) hos Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync() hos Microsoft.AspNetCore.Invoc.Invoker. () hos Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext) hos Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)








Kilde: https://blockchain.news/news/ftx-japan-prepares-refund