Unity Multiplayer POCO parameter crashes host

I have this POCO definition in my code:

Code (CSharp):

1. [System.Serializable]
2.     public class Description {
3.         public Description() {
4.             Role = Roles.OneOnOne;
5.             Commitment = Commitments.Balanced;
6.             Speed = 20;
7.         }
8.         public Description (Roles role, Commitments commitment, float speed) {
9.             Role = role;
10.             Commitment = commitment;
11.             Speed = speed;
12.         }
13.         public Roles Role;
14.         public Commitments Commitment;
15.         public float Speed;
16.     }

And I have this Command definition:

Code (CSharp):

1. [Command]public void CmdSpawnContender (Contender.Description description) {
2.         SpawnContender(description);
3.     }

When I call the command from a client, however, my host crashes silently, not even a bug reporter window. Anyone have any idea why this would happen?

 

Struct fixed it, thanks.