Raised when a model is too old to be loaded.
message- explanation of why the model is invalid
Initialize message and model_version attributes.
Raised if someone tries to use an agent that is not ready.
An agent might be created, e.g. without an interpreter attached. But if someone tries to parse a message with that agent, this exception will be thrown.
Initialize message attribute.
Raised if a channel is not configured correctly.
Raised if a tracker featurizer is incorrectly used.