Automapper：“Missing type map configuration or unsupported mapping”

Question

AssertConfigurationIsValid通过，并且正在尝试的对象已完全填充，但在第一个调用的Map请求中出现错误。

我试图映射

Survey ToLoad = Mapper.Map<Survey>(U); 

我初始化automapper与下面的代码。

//Lots of other Maps 
Mapper.Initialize(cfg => cfg.CreateMap<User, SMUser>() 
     .ForMember(t => t.AccountType, s => s.MapFrom(so => so.AccountType != null ? so.AccountType : String.Empty)) 
     .ForMember(t => t.Username, s => s.MapFrom(so => so.Username != null ? so.Username : String.Empty))); 


Mapper.Initialize(cfg => cfg.CreateMap<SurveyMonkey.Containers.Survey, Survey>().ForMember(t => t.AnalyzeUrl, s => s.MapFrom(so => so.AnalyzeUrl != null ? so.AnalyzeUrl : String.Empty)) 
     .ForMember(t => t.Category, s => s.MapFrom(so => so.Category != null ? so.Category : String.Empty)) 
     .ForMember(t => t.CollectUrl, s => s.MapFrom(so => so.CollectUrl != null ? so.CollectUrl : String.Empty)) 
     .ForMember(t => t.EditUrl, s => s.MapFrom(so => so.EditUrl != null ? so.EditUrl : String.Empty)) 
     .ForMember(t => t.Language, s => s.MapFrom(so => so.Language != null ? so.Language : String.Empty)) 
     .ForMember(t => t.Preview, s => s.MapFrom(so => so.Preview != null ? so.Preview : String.Empty)) 
     .ForMember(t => t.SummaryUrl, s => s.MapFrom(so => so.SummaryUrl != null ? so.SummaryUrl : String.Empty)) 
     .ForMember(t => t.Title, s => s.MapFrom(so => so.Title != null ? so.Title : String.Empty)) 
     //Some more members 
); 

//LISTS 
Mapper.Initialize(cfg => cfg.CreateMap<List<SurveyMonkey.Containers.Collector>, List<Collector>>()); 

//Lots of other List Maps 

我正在使用Nuget（5.2.0）的最新稳定版本。

Answer 1

只有在整个配置中调用Mapper.Initialize一次，否则您将覆盖它。

你可以用配置在继承AutoMapper.Profile类：

using AutoMapper; 

public class MyAutoMapperProfile : Profile { 

    protected override void Configure() { 
     CreateMap<User, SMUser>(); 
     CreateMap<SurveyMonkey.Containers.Survey, Survey>(); 
     CreateMap<List<SurveyMonkey.Containers.Collector>, List<Collector>>(); 
    } 
} 

使用该资料然后初始化映射：

Mapper.Initialize(cfg => { 
    cfg.AddProfile<MyAutoMapperProfile>(); 
    cfg.AddProfile<OtherAutoMapperProfile>(); 
}); 

AutoMapper Configuration