>I have the following classes as models:
>
>attachment 1 is the profile class. 2 is the Measrements class and 3 is the web api.
>
>The return profile object contains a measurement list with 4 objects. When I execute the call to the rest api:
>
>localhost/30504/api/Setting/1, I get the following error in attachment 4:
>
>When I remove the list object from profile, it works just fine. How do I get this to serialize/deserialize correctly?
>Thanks in advance for you help... I'm new at this..

Your Measurement class has a reference to ProfileSetting class, so it looks like ProfileSetting has a list of Measurements and Measurement has ProfileSetting, so you're in a circular reference.

Could this be a problem?