Up until two days ago, I have been running the bot framework using Table Storage for my bot data based on this blog post [Saving State data with Bot Builder for Azure][1]
As of yesterday, I started getting the following error while running the bot
**
Exception: Buffer cannot be null. Parameter name: buffer
[File of type 'text/plain']
**
I have tracked it down to the following line of code in Global.asax.cs file
builder.Register(c => new CachingBotDataStore(store, CachingBotDataStoreConsistencyPolicy.ETagBasedConsistency)).As<IBotDataStore<BotData>>().AsSelf().InstancePerLifetimeScope();
if I comment out that line, the bot runs, however, bot storage is not stored in the table anymore.
I have also implemented DocumentDB as a test, and the bot functions properly, but this would mean losing all of my user's state.
Any ideas?
