Automapper 3.2.1以下方法或属性之间的调用不明确

针对遇到相同问题的任何人的快速错误修复。“在以下方法或属性之间的调用是不明确的。” 从3.2.0版开始，ResolveUsing的语法似乎已更改。

刚刚将我项目上的Automapper更新为3.2.1。我得到以下错误：

在以下方法或属性“AutoMapper.IMemberConfigurationExpression.ResolveUsing (System.Func)”和“AutoMapper.IMemberConfigurationExpression.ResolveUsing (System.Func)”之间的调用不明确

Mapper.CreateMap()  
.ForMember(x => x.Created, x => x.ResolveUsing(t => DateTime.UtcNow))  
.ForMember(x => x.Modified, x => x.ResolveUsing(t => DateTime.UtcNow))  
.ForMember(x => x.Deleted, x => x.Ignore());

快速搜索找到其他遇到相同问题的人。

• https://github.com/AutoMapper/AutoMapper/issues/497

因此，有2个选项。

1. 用途MapFrom：

Mapper.CreateMap()
.ForMember(x => x.Created, x => x.MapFrom(t => DateTime.UtcNow))
.ForMember(x => x.Modified, x => x.MapFrom(t => DateTime.UtcNow))
.ForMember(x => x.Deleted, x => x.Ignore());

2. 明确告诉Automapper我在lambda中使用的对象：

Mapper.CreateMap()  
.ForMember(x => x.Created, x => x.ResolveUsing((TaskCreated t) => DateTime.UtcNow))  
.ForMember(x => x.Modified, x => x.ResolveUsing((TaskCreated t) => DateTime.UtcNow))
.ForMember(x => x.Deleted, x => x.Ignore());