generate early bound classes in Dynamic CRM

Hi,

Dynamic CRM online , I am trying to generate Early bound classes but getting error like

" An error occurred when processing the security tokens in the message:You are using Ws-Tust authentication which has been deprecated and no longer supported in your environment. Please use oAuth2.0 authentication.
An error occurred when processing the security tokens in the message:You are using Ws-Tust authentication which has been deprecated and no longer supported in your environment. Please use oAuth2.0 authentication.Unable to Login to Dynamics CRM"

Is there any way to generate Early bound classes using new authentication method(oAuth2.0) ?

Thanks,

Keyur Shah