我想从 Sitefinity CMS 导出/导入菜单下载一个 ZIP 文件，但是在我单击“导出到 ZIP 文件”按钮后，我收到了这个错误：数据没有成功导出。我尝试单独导出每个项目，但结果仍然相同。
重现步骤：转到 Sitefinity CMS（管理站点）-> 管理 -> 导出/导入 -> 下载 ZIP 文件 -> 仅选择 1 个项目 -> 单击“导出到 Zip 文件”按钮 -> 浏览器上出现错误：数据未成功导出。
详细错误消息，在 CMS 上：数据尚未成功导出
在 Chrome 开发者工具上：
Response Code 500. ErrorCode: InvalidOperationException. Message: Scheduling is not enabled
App_Data/sitefinity/Logs 中的 Error.log：
----------------------------------------
ActivityId: 55XXX // obscured info
Timestamp: 11/11/2020 4:44:49 AM
Message: HandlingInstanceID: d9XXX // obscured info
An exception of type 'System.InvalidOperationException' occurred and was caught.
--------------------------------------------------------------------------------
11/11/2020 04:44:49
Type : System.InvalidOperationException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=XXX // obscured info
Message : Scheduling is not enabled
Source : Telerik.Sitefinity.Packaging
Help link :
Data : System.Collections.ListDictionaryInternal
TargetSite : Void ScheduleTask(Telerik.Sitefinity.Scheduling.ScheduledTask)
HResult : -2146233079
Stack Trace : at Telerik.Sitefinity.Packaging.Web.Services.PackagingWebService.ScheduleTask(ScheduledTask task)
at ServiceStack.Host.ServiceExec`1.<>c__DisplayClass3_0.<CreateExecFn>b__0(Object service, Object request) in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack\Host\ServiceExec.cs:line 132
at ServiceStack.Host.ServiceRunner`1.<ExecuteAsync>d__15.MoveNext() in C:\BuildAgent\work\3481147c480f4a2f\src\ServiceStack\Host\ServiceRunner.cs:line 133
Additional Info:
MachineName : XXX // obscured info
TimeStamp : 11/11/2020 4:44:49 AM
FullName : Telerik.Sitefinity.Utilities, Version=13.0.7326.0, Culture=neutral, PublicKeyToken=XXX // obscured info
AppDomainName : /LM/W3SVC/XXX // obscured info
ThreadIdentity : a@b.com // obscured info
WindowsIdentity : IIS APPPOOL\XXX // obscured info
Requested URL : [h-t-t-p-s://]www.XXX.com/RestApi/Sitefinity/packaging/archive // obscured info
Category: ErrorLog
Priority: 0
EventId: 90000
Severity: Error
Title:Enterprise Library Exception Handling
Machine: XXX // obscured info
App Domain: XXX // obscured info
ProcessId: XXX // obscured info
Process Name: D:\Windows\system32\inetsrv\w3wp.exe
Thread Name:
Win32 ThreadId:XXX // obscured info
Extended Properties:
----------------------------------------
请给我一个线索，如何解决这个错误？我做了一些研究，我得到了这个链接：[https://] www.progress.com/documentation/sitefinity-cms/for-developers-scheduled-tasks