在AutoMapper映射过程中应确保Object.Property和Property具有相同的数据类型。如果数据类型不匹配，可以通过自定义类型转换器解决该问题。以下是代码示例：

public class SourceObject
{
    public string Property1 { get; set; }
    public int Property2 { get; set; }
}

public class DestinationObject
{
    public string Property1 { get; set; }
    public int Property2 { get; set; }
}

public class CustomValueConverter : ITypeConverter
{
    public DestinationObject Convert(SourceObject source, DestinationObject destination, ResolutionContext context)
    {
        destination = destination ?? new DestinationObject();
        destination.Property1 = source.Property1 ?? "default value";
        destination.Property2 = source.Property2;
        return destination;
    }
}

var config = new MapperConfiguration(cfg =>
    {
        cfg.CreateMap()
            .ConvertUsing();
    });

var mapper = config.CreateMapper();
var source = new SourceObject { Property1 = null, Property2 = 10 };
var destination = mapper.Map(source);

Console.WriteLine(destination.Property1); // 输出 "default value"
Console.WriteLine(destination.Property2); // 输出 10