[BUG] AI Search connection in `mlindex_content` not detected about promptflow HOT 7 OPEN

I've been playing around with this test with my flow.dag.yml and it looks like where it's falling down is in flow.py:get_connection_names() where it does not inspect the mlindex_content.

I'm not sure if the code has changed to break this, if the generated flow.dag.yml interface has changed or perhaps this has never worked? Or maybe I'm doing something wrong!

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Looks like there has been a change to this recently https://learn.microsoft.com/en-us/azure/machine-learning/prompt-flow/tools-reference/index-lookup-tool?view=azureml-api-2#how-to-migrate-from-legacy-tools-to-the-index-lookup-tool.

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Pretty sure you hit the same problem I did: #2876

You have to do the metadata account set manually, for whatever reason the activity is not taking the config.json file into consideration:

az login
az account set --subscription <subscription_id>
az configure --defaults group=<resource_group_name> workspace=<workspace_name>

from promptflow.

I've hardcoded a connection in the flow.dag.yml which has got me further.

I am now getting a response of:

{"error":{"code":"UserError","message":"Execution failure in 'index_lookup': (Exception) Exception occured in search_function_construction."}}

I have also deployed this to an AML endpoint using the deploy button in AML and get the same error there.

As it stands, from what I can tell, using Azure AI Search with Prompt Flow is currently unusable unless invoked from AML Studio.

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