When you upgrade from Release Management 2013 Update 3RC to Release Management 2013 Update 3RTW, Releases to Azure environments fails, and the following error message will be logged in log file of the Predeploy step:
Note The Predeploy step log can be accessed from the View Logs tab of the failed release.
System.ArgumentNullException: Value cannot be null. Parameter name: azureStorage.ContainerName
Note The Predeploy step log can be accessed from the View Logs tab of the failed release.