[Bug]: Task xxx was specified but does not exist

[Zhanjh1]

What happened?

Why did my code run on 0.2.6 but encounter the following error on 0.2.16：
root=JSONRPCErrorResponse(error=JSONRPCError(code=-32001, data=None, message='Task 66e03ae42698426aa7e7bd66ce886d15 was specified but does not exist'), id=None, jsonrpc='2.0')
Do I need to create the task in task_manager before sending the message with the task id?

Relevant log output

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[MarcoFerreiraPerson]

You must create a new task id, you cannot share taskids between agents.

[kthota-g]

Agent executor can create a new task object for requests and provide subsequent updates to the client.

Take a look at this example related to creating a new task and enqueuing the task object - https://github.com/a2aproject/a2a-samples/blob/0544f18623f905a8479a21fe7be257dac37f74ee/samples/python/agents/langgraph/app/agent_executor.py#L45