Azure Service Bus Queue error: “No valid combinati

Question

Trying to connect to a windows azure queue from a windows service (ie. not running in azure, just on my desktop, for now, but eventually on a self-hosted windows server).

The connection string generated by the dashboard is in the following form:

Endpoint=sb://MyServiceBus.servicebus.windows.net/;SharedAccessKeyName=MySasName;SharedAccessKey=*****

I'm trying to initialize the CloudStorageAccount, but am receiving a format exception (as noted in the title).

string str = ConfigurationManager.AppSettings["StorageConnectionString"];
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
            str);

This seems to match all of the documentation ... can anyone clear up what might be going on?