list index out of range when following function call with responses

[dudizimber]

https://github.com/googleapis/python-aiplatform/blame/b8b589ce9fff29d1721450d32b4a84a7f69413c3/vertexai/generative_models/_generative_models.py#L920

The above line throws a list index out of range error when the response returns with no candidates.

[Ark-kun]

Can you please provide code that is causing this issue for you so that I can help you?

Are you using send_message or generate_content?

Responses lack candidates when they are blocked. A blocked response results in exception when using ChatSession. If you want to manually handle blocked responses, please use generate_content instead of send_message.