We've a simple webAPI returns list of custom object, when calling the method it returns the below error:
The 'ObjectContent`1' type failed to serialize the response body for content type 'application/json; charset=utf-8'.
The code has run normally in the dev environment:
public class TestController : ApiController
{
public List<Person> GetService()
{
List<Person> result = new List<Controllers.Person>();
result.Add(new Person() { Name = "Koko", Age = 40 });
result.Add(new Person() { Name = "Koko2", Age = 50 });
result.Add(new Person() { Name = "Koko3", Age = 50 });
return result;
}
}
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}We're hosting the WebAPI under Windows Delux hosting, under a subdomain, the other webAPI methods that return none list types are working fine, please advise.
Below the stack trace of the detailed exception:
Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.",
"ExceptionType": "System.Security.SecurityException",
"StackTrace": " at System.Delegate.DelegateConstruct(Object target, IntPtr slot)\r\n at Newtonsoft.Json.Utilities.LateBoundReflectionDelegateFactory.CreateParametrizedConstructor(MethodBase method)\r\n at Newtonsoft.Json.Utilities.CollectionUtils.ResolveEnumableCollectionConstructor(Type collectionType, Type collectionItemType)\r\n at Newtonsoft.Json.Serialization.JsonArrayContract..ctor(Type underlyingType)\r\n at Newtonsoft.Json.Serialization.DefaultContractResolver.CreateArrayContract(Type objectType)\r\n at Newtonsoft.Json.Serialization.DefaultContractResolver.CreateContract(Type objectType)\r\n at Newtonsoft.Json.Serialization.DefaultContractResolver.ResolveContract(Type type)\r\n at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize(JsonWriter jsonWriter, Object value, Type objectType)\r\n at Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter jsonWriter, Object value, Type objectType)\r\n at System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.WriteToStream(Type type, Object value, Stream writeStream, Encoding effectiveEncoding)\r\n at System.Net.Http.Formatting.JsonMediaTypeFormatter.WriteToStream(Type type, Object value, Stream writeStream, Encoding effectiveEncoding)\r\n at System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.WriteToStream(Type type, Object value, Stream writeStream, HttpContent content)\r\n at System.Net.Http.Formatting.BaseJsonMediaTypeFormatter.WriteToStreamAsync(Type type, Object value, Stream writeStream, HttpContent content, TransportContext transportContext, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.WebHost.HttpControllerHandler.<WriteBufferedResponseContentAsync>d__1b.MoveNext()
