undefined is not an object (evaluating '_yup2.default.object') in v 0.25

Hi guys, when update to v 0.25.0 im getting the following error:

Here the code:

import Yup from 'yup';
// ...
validationSchema={Yup.object().shape({
  username: Yup.string().required(I18n.t('user_required')),
  password: Yup.string().required(I18n.t('password_required')),
})} 

What it means? in v 0.24 works as expected, thanks !!!

[luanws]

Change the import from import Yup from 'yup'; to import * as Yup from 'yup';

[radoncreep]

thanks @luanws