AutoMapper.Mapper does not contain definition for CreateMap

The static version of the CreateMap method was deprecated in 4.2, then removed from the API in version 5.0. Jimmy Bogard talks about this in more detail in this blog post.

The new technique for mapping is non-static, like this (code is from the post):

var config = new MapperConfiguration(cfg => {
    cfg.CreateMap<Source, Dest>();
});

IMapper mapper = config.CreateMapper();
var source = new Source();
var dest = mapper.Map<Source, Dest>(source);