Converting circular structure to JSON - While odata.create

<PropertyName="Address"Type="/IWBEP/GWSAMPLE_BASIC.CT_Address"Nullable="false"/>

<PropertyName="BusinessPartnerID"Type="Edm.String"Nullable="false"MaxLength="10"sap:label="Business Partner ID"sap:creatable="false"sap:updatable="false"/>

<PropertyName="CompanyName"Type="Edm.String"Nullable="false"MaxLength="80"sap:label="Company"/>

<PropertyName="WebAddress"Type="Edm.String"sap:label="Web Address"sap:sortable="false"sap:filterable="false"sap:semantics="url"/>

<PropertyName="EmailAddress"Type="Edm.String"Nullable="false"MaxLength="255"sap:label="E-Mail"sap:semantics="email"/>

<PropertyName="PhoneNumber"Type="Edm.String"MaxLength="30"sap:label="Phone No."sap:semantics="tel"/>

<PropertyName="FaxNumber"Type="Edm.String"MaxLength="30"sap:label="Fax Number"/>

<PropertyName="LegalForm"Type="Edm.String"MaxLength="10"sap:label="Legal Form"/>

<PropertyName="CurrencyCode"Type="Edm.String"Nullable="false"MaxLength="5"sap:label="Currency Code"sap:semantics="currency-code"/>

<PropertyName="BusinessPartnerRole"Type="Edm.String"Nullable="false"MaxLength="3"sap:label="Bus. Part. Role"/>

<PropertyName="CreatedAt"Type="Edm.DateTime"Precision="7"sap:label="Time Stamp"sap:creatable="false"sap:updatable="false"/>

<PropertyName="ChangedAt"Type="Edm.DateTime"Precision="7"ConcurrencyMode="Fixed"sap:label="Time Stamp"sap:creatable="false"sap:updatable="false"/>

Where as the Address is like:

ComplexTypeName="CT_Address">

</ComplexType>

I have created a form to get data from user. I bound json model to the form which looks like:

{

  "CompanyName" : " ",

  "WebAddress" : " ",

  "EmailAddress": " ",

  "PhoneNumber": " ",

  "FaxNumber":" ",

  "Address" : {

       "Building" : " ",

       "Street" : " ",

       "PostalCode" : " ",

       "City" : " ",

       "Country" : " "

  }

}

Since a partnerset has a address.

I am calling the create method of odata :

     var json = this.getView().getModel("jsonModel");

        this.getView().getModel().create('/BusinessPartnerSet', json, null,

          function(data){

            sap.m.messageToast("Data Created");

            var rData = data;

            },

            function(error){

            var e = error;

            }

  );

I am getting error when calling the create method:

Converting circular structure to JSON - 

How to pass data corrrectly to odata to create entity ?

Thanks,

Abhi