使用ServiceStack.OrmLite异步API时出现奇怪的NullReferenceException

问题描述

使用ServiceStack.Ormlite的异步API时，我不断收到NullReferenceException。我真的不知道该从哪里去，我不得不承认我要疯了一半

我知道的是，将await db.SelectAsync<T>(sqlString,parameters);切换为db.Select<T>(sqlString,parameters);可以解决问题。

任务

堆栈跟踪

   at System.Web.threadcontext.AssociateWithCurrentThread(Boolean setImpersonationContext)
   at System.Web.HttpApplication.OnThreadEnterPrivate(Boolean setImpersonationContext)
   at System.Web.LegacyAspNetSynchronizationContext.CallCallbackPossiblyUnderLock(SendOrPostCallback callback,Object state)
   at System.Web.LegacyAspNetSynchronizationContext.CallCallback(SendOrPostCallback callback,Object state)
   at System.Web.LegacyAspNetSynchronizationContext.Post(SendOrPostCallback callback,Object state)
   at System.Threading.Tasks.SynchronizationContextAwaitTaskContinuation.PostAction(Object state)
   at System.Threading.Tasks.AwaitTaskContinuation.runcallback(ContextCallback callback,Object state,Task& currentTask)
--- End of stack trace from prevIoUs location where exception was thrown ---
   at System.Threading.Tasks.AwaitTaskContinuation.<>c.<ThrowAsyncIfNecessary>b__18_0(Object s)
   at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext,ContextCallback callback,Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext,Boolean preserveSyncCtx)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.dispatch()
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()

解决方法

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