The deployment cannot be updated because the new cscfg file specifies a different number of roles for the deployment. To ...

The deployment cannot be updated because the new cscfg file specifies a different number of roles for the deployment. To update the deployment, you must select "Allow VM size or role count to be updated" in the Upgrade Deployment dialog box. IMPORTANT: This type of update causes the deployment to be rebuilt. Any information that is stored locally will be lost