Ext.data.reader.Reader: Using the deprecated "root" configuration. Use "rootProperty" instead.

Hello,

While am working on upgrade from Extjs 4 to Extjs 5, am getting this error in Store.

Ext.data.reader.Reader: Using the deprecated "root" configuration. Use "rootProperty" instead.

In Extjs 4 we are using the root property in Proxy reader. But in Extjs we ahve to change the Proxy reader from root to  rootProperty.

Extjs V4:

proxy: {

        type: 'ajax',

        url: 'data/GetClients',

        reader: {

            type: 'json',

            root: 'rows',

            total: 'totalCount'

        }

    }

Extjs V5:

    proxy: {

        type: 'ajax',

        url: 'data/GetClients',

        reader: {

            type: 'json',

            rootProperty: 'rows',

            totalProperty: 'totalCount'

        }

    }