Dotnetnuke 搜索结果模块“；发生了一个严重错误"；升级到DNN 9.2.2时

从DNN 7->DNN 9.2.2升级后，我的搜索结果模块出现问题

每次使用DNN的Xcillion（内置搜索）进行搜索时，我都会在搜索结果页面上看到“出现严重错误。请检查事件查看器以了解更多详细信息”（/Default.aspx？tabid=87&error=Object+reference+not+set+to+an+instance+of+an+Object.&content=0）错误

我已尝试通过删除搜索文件夹中的内容重新编制索引，即

已备份了/desktopmodules/admin/searchresults中的旧文件，并添加了新文件，以防安装过程中出现问题，这与可能影响搜索的DLL文件相同，不会影响avil

任何提示或想法都会非常棒，其他一切都可以在这个DNN实例上正常工作，只是无法找出这个错误

管理日志错误1：

Message:Object reference not set to an instance of an object.

StackTrace:

InnerMessage:Object reference not set to an instance of an object.

InnerStackTrace:

at DotNetNuke.Modules.SearchResults.SearchResults.get_SearchContentSources() at DotNetNuke.Modules.SearchResults.SearchResults.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

管理日志错误2：

Message:Value cannot be null. Parameter name: type

StackTrace:

at System.Activator.CreateInstance(Type type, Boolean nonPublic) at System.Activator.CreateInstance(Type type) at DotNetNuke.Services.Search.Internals.InternalSearchControllerImpl.SearchContentSourceCallback(CacheItemArgs cacheItem) at DotNetNuke.Common.Utilities.DataCache.GetCachedDataFromRuntimeCache(CacheItemArgs cacheItemArgs, CacheItemExpiredCallback cacheItemExpired)

管理日志错误3：

Message:Value cannot be null. Parameter name: collection

StackTrace:

at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument) at System.Collections.Generic.List`1.InsertRange(Int32 index, IEnumerable`1 collection) at DotNetNuke.Web.InternalServices.SearchServiceController.GetSearchContentSources(IList`1 typesList) at DotNetNuke.Web.InternalServices.SearchServiceController.Preview(String keywords, String culture, Int32 forceWild, Int32 portal) at lambda_method(Closure , Object , Object[] ) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.b__9(Object instance, Object[] methodParameters) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken) --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Tracing.ITraceWriterExtensions.d__18`1.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Controllers.ApiControllerActionInvoker.d__0.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Tracing.ITraceWriterExtensions.d__18`1.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Controllers.ActionFilterResult.d__2.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Filters.AuthorizationFilterAttribute.d__2.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Filters.AuthorizationFilterAttribute.d__2.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Web.Http.Controllers.ExceptionFilterResult.d__0.MoveNext()```

消息：值不能为空。参数名称：集合
堆栈跟踪：
位于System.Collections.Generic.List`1.InsertRange（Int32索引，IEnumerable`1集合）的System.ThrowHelper.ThrowArgumentNullException（ExceptionOnArgument参数）位于DotNetNuke.Web.InternalServices.SearchServiceController.GetSearchContentSources（IList`1 typesList）位于DotNetNuke.Web.InternalServices.SearchServiceController.Preview（字符串关键字、字符串区域性、Int32 forceWild、Int32 portal）在System.Web.Http.Controller.ReflectedHttpActionDescriptor.ActionExecutor.c_uDisplayClass10.b_u9（对象实例、对象[]方法参数）的lambda_方法（闭包、对象、对象[]）中（HttpControllerContext controllerContext，IDictionary`2参数，CancellationToken CancellationToken）----在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）的System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中，从引发异常的上一个位置开始的堆栈结束跟踪在System.Web.Http.Tracing.ITraceWriterExtensions.d_u18`1.MoveNext（）---从引发异常的上一个位置开始的堆栈结束跟踪---在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）上在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）的System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中，位于System在System.Web.Http.Tracing.ITraceWriterExtensions.d_u18`1.MoveNext（）---从引发异常的上一个位置开始的堆栈结束跟踪---在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）上在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）的System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中，位于System.Web.Http.Controllers.ActionFilterResult.d_u2.MoveNext（）---从引发异常的上一个位置开始的堆栈结束跟踪在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）的System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中，位于System.Web.Http.Filters.AuthorizationFilterAttribute.d_u2.MoveNext（）---从引发异常的上一个位置开始的堆栈结束跟踪在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）的System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中，位于System.Web.Http.Filters.AuthorizationFilterAttribute.d_u2.MoveNext（）---从引发异常的上一个位置开始的堆栈结束跟踪在System.Web.Http.Controllers.ExceptionFilterResult.d_u0.MoveNext（）中```

您是按照推荐的升级路径进行升级，还是一步到位

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您可以选择恢复并再次尝试升级吗？

是的，按照推荐的升级路径，以增量步骤进行升级。我可以选择恢复并重试，可能在我有更多可用时间时：）