Botframework error when saving state

Question

In bot framework, when i try to save state, then run the bot from fb messenger I get the error "Sorry, my bot code is having an issue."

On commenting the following line, this error doesn't come anymore: await botClient.BotState.SetUserDataAsync(activity.ChannelId, activity.From.Id, botData);

Why could this be happening? I tried setPrivateConversationDataAsync as well, it gives the same behaviour

Answer 1

The default state client (activity.GetStateClient().BotSate) should not be used within the context of a dialog. Bot Builder dialogs automatically load state when message processing begins, and persist state when message processing completes. Instead, use the IDialogContext methods to manipulate state within the dialog: context.UserData.SetValue("UserDataKey", objectToPersist);