我尝试使用 Sitefinity CLI 将 sirefinity 从 15.0 升级到 15.2（甚至尝试过 15.1 到 15.2）。我使用了命令
sf upgrade SitefinityWepApp.sln "15.2.8400"
几分钟后它会运行并打开 Visual studio。然后错误地关闭它。下面是日志，我在多台计算机上尝试过，没有运气。
info: Successfully exported upgrade config!
info: Removing EnhancerAssembly for projects (if exists)
info: Visual studio installation found. Version: "VisualStudio.DTE.17.0". Launching...
info: Opening solution: "D:\repo\Quantum\SitefinityWebApp.sln"...
info: Waiting...
info: Solution ready!
info: Opening console...
info: Waiting...
info: Studio is ready!
info: Unblocking script file.
info: Executing script in visual studio - c:\sf\PowerShell\Updater.ps1. Command used: &'c:\sf\PowerShell\Updater.ps1' -RemoveDeprecatedPackages $False -SitefinityVersion 15.2.8400
info: Waiting for operation to complete...
fail: Error occured while executin visual stuido command fail -
Error occured while upgrading Telerik.Sitefinity.All. The error was: Failed to add reference to 'AWSSDK.Core'.
A reference to the component 'AWSSDK.Core' already exists in the project.Check the C:\sf\PowerShell\upgrade.log for more details
info: Closing Visual Studio instance...
info: Closing Visual Studio instance closed.
fail: Error during upgrade: Operation failed
info: Closing Visual Studio instance...
info: Closing Visual Studio instance closed.
请指教。
我遇到了同样的问题。