我无法从Sitefinity CMS的“导出/导入”菜单中下载ZIP文件

如何解决我无法从Sitefinity CMS的“导出/导入”菜单中下载ZIP文件

我想从Sitefinity CMS的“导出/导入”菜单中下载一个ZIP文件，但是单击“导出到ZIP文件”按钮后，出现此错误：数据未成功导出。我尝试单独导出每个项目，但结果仍然相同。

复制步骤： 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->错误出现在浏览器上：数据尚未被保存 成功导出。

详细错误消息， 在CMS上：数据未成功导出

在Chrome DevTools上： Response Code 500. ErrorCode: InvalidOperationException. Message: Scheduling is not enabled

来自App_Data / sitefinity / Logs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,PublicKeyToken=XXX // obscured info
AppDomainName : /LM/W3SVC/XXX // obscured info
ThreadIdentity : [e-mail] // 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: 
----------------------------------------

请给我一个提示，如何解决这个错误？我做了一些研究，得到了以下链接：[h-t-t-p-s：//] www.progress.com/documentation/sitefinity-cms/for-developers-scheduled-tasks

解决方法

转到管理>模块和服务，并确保计划服务已激活。