ExceptionMessage": "No MediaTypeFormatter is available to read an object of type 'user' from content with media type 'multipart/form-data in "postman"

I am creating the Login Service using Web API. When I am checking with `fiddler` it's working fine but when I am checking with `postman` of `chrome` it's showing error: ``` { "Message": "An error has occurred.", "ExceptionMessage": "No MediaTypeFormatter is available to read an object of type 'user' from content with media type 'multipart/form-data'.", "ExceptionType": "System.InvalidOperationException", "StackTrace": " at System.Net.Http.HttpContentExtensions.ReadAsAsync[T](HttpContent content, Type type, IEnumerable`1 formatters, IFormatterLogger formatterLogger)\r\n at System.Net.Http.HttpContentExtensions.ReadAsAsync(HttpContent content, Type type, IEnumerable`1 formatters, IFormatterLogger formatterLogger)\r\n at System.Web.Http.ModelBinding.FormatterParameterBinding.ReadContentAsync(HttpRequestMessage request, Type type, IEnumerable`1 formatters, IFormatterLogger formatterLogger)\r\n at System.Web.Http.ModelBinding.FormatterParameterBinding.ExecuteBindingAsync(ModelMetadataProvider metadataProvider, HttpActionContext actionContext, CancellationToken cancellationToken)\r\n at System.Web.Http.Controllers.HttpActionBinding.<>c__DisplayClass1.<ExecuteBindingAsync>b__0(HttpParameterBinding parameterBinder)\r\n at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()\r\n at System.Threading.Tasks.TaskHelpers.IterateImpl(IEnumerator`1 enumerator, CancellationToken cancellationToken)" } ``` ``` public class user { //public user(string userId, string password) //{ // UserId = userId; // Password = password; //} public string UserId { get; set; } public string Password { get; set; } } ``` I am checking in `postman` if this service is able to access in mobile application. Also, to check this in mac system.