Not able to create a RAG Search Pipeline after following the documentation

Versions (relevant - OpenSearch/Dashboard/Server OS/Browser):

Describe the issue:
I am working on conversational search and following the steps given in the documentation.
I am getting stuck in the creating RAG search pipeline encountering some error even after enabling the cluster settings for RAG pipeline.

Configuration:

The Configuration for RAG Search pipeline is

PUT /_search/pipeline/<pipeline_name>

{
  "response_processors": [
    {
      "retrieval_augmented_generation": {
        "tag": "Hugging Face_pipeline_demo",
        "description": "Demo pipeline Using Hugging Face Connector",
        "model_id": "T_PnR4sB9MGSVr",
        "context_field_list": ["text"],
        "system_prompt": "You are a helpful assistant",
        "user_instructions": "Generate a concise and informative answer in less than 100 words for the given question"
      }
    }
  ]
}

Relevant Logs or Screenshots:

This is the screenshot of when i am trying to create a search RAG Pipeline with the ERROR.

@Shivam27, are you still facing the issue?

Did you try this:

PUT /_cluster/settings
{
  "persistent": {
    "plugins.ml_commons.memory_feature_enabled": true
  }
}

ref doc: Conversational search - OpenSearch Documentation