Hi,
I need to select only some values to be copied from a dictionary but it doesn't work. You can reproduce it with this code:

Version: 6.1.1

Exception:
Mapster.CompileException
ArgumentException: 'Name' is not a member of type 'System.Collections.Generic.IDictionary`2[System.String,System.Object]' (Parameter 'propertyOrFieldName')
System.Linq.Expressions.Expression.PropertyOrField(System.Linq.Expressions.Expression, string)
Mapster.Utils.ExpressionEx.PropertyOrField(System.Linq.Expressions.Expression, string)
System.Linq.Enumerable.Aggregate<TSource, TAccumulate>(System.Collections.Generic.IEnumerable, TAccumulate, System.Func<TAccumulate, TSource, TAccumulate>)
Mapster.Utils.ExpressionEx.PropertyOrFieldPath(System.Linq.Expressions.Expression, string)
Mapster.Models.InvokerModel.GetInvokingExpression(System.Linq.Expressions.Expression, Mapster.MapType)
Mapster.Models.InvokerModel.Next(System.Linq.Expressions.ParameterExpression, string)
Mapster.ReflectionUtils.Next.AnonymousMethod__1(Mapster.Models.InvokerModel)
System.Linq.Enumerable.WhereSelectListIterator<TSource, TResult>.MoveNext()
System.Linq.Enumerable.WhereEnumerableIterator.ToList()
System.Linq.Enumerable.ToList(System.Collections.Generic.IEnumerable)

using Mapster;
using MapsterMapper;
using System.Collections.Generic;
using System.Diagnostics;

namespace ConsoleApp22
{
    public class Post
    {
        public IDictionary<string, object> Dic { get; set; }
    }
    class Program
    {

        static void Main(string[] args)
        {
            var config = TypeAdapterConfig<Post, Post>
                .NewConfig()
                .Map(nameof(Post.Dic) + ".Name", nameof(Post.Dic) + ".Name");
            config.Compile();
            var mapper = new Mapper(config.Config);

            var p1 = new Post{ Dic = new Dictionary<string, object>() { { "Name", "test"}, {"Secret" , "password" }} };
            var p2 = new Post();
            mapper.From(p1).AdaptTo(p2);
            Debug.Assert(p1.Dic["Name"] == p2.Dic["Name"]);
            Debug.Assert(! p2.Dic.ContainsKey("Secret"));

        }
    }
}