C# Asp.net样板文件中的Elsa工作流集成

我正在尝试将Elsa工作流集成到我的.net核心应用程序中。下面是一个错误

ERROR 2021-01-22 14:34:08,632 [15   ] nostics.DeveloperExceptionPageMiddleware - An unhandled exception has occurred while executing the request.
System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types.


Could not load type 'Microsoft.EntityFrameworkCore.Metadata.RelationalModelAnnotations' from assembly 
'Microsoft.EntityFrameworkCore.Relational, Version=3.1.9.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.
Could not load type 'Microsoft.EntityFrameworkCore.Metadata.RelationalPropertyAnnotations' from assembly 
'Microsoft.EntityFrameworkCore.Relational, Version=3.1.9.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.
Could not load type 'Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalFullAnnotationNames' from assembly 
'Microsoft.EntityFrameworkCore.Relational, Version=3.1.9.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'

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.net core版本：-3.1

请确保如果使用.net core 3.1，则引用的是Elsa 1.4，而不是Elsa 1.5或Elsa 2.0。

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使用.NET 5时，请确保您引用了Elsa 1.5或更高版本。

您引用了哪个版本的Elsa？