Custom knowledge source not working for Crew and Agents

I have been trying to specify custom text sources for my Agent as well as my Crew, which is failing.
I am running Ollama locally, and using llama3.

Initially I tried to add a custom source to my agent like this:

text_source = TextFileKnowledgeSource(
    file_paths=["./source.txt"]
)
return Agent(
    config=self.agents_config['Source_updater'],
    verbose=True,
    llm = ollama_llm,
    tools=[GetAccessToken(), ....],
    knowledge_sources=[text_source],
    max_iter=5
)

But it was asking for an OpenAI api key… I checked the community chats and found that it defaults to OpenAI, and we have to provide embedder configuration for it. so I provided the same:

embedder={
"provider": "ollama",
"config": {
    "model": "nomic-embed-text",
}
},

but it still throws an error…

[2025-02-19 12:07:04][ERROR]: Failed to upsert documents: Expected Embedings to be non-empty list or numpy array, got [] in upsert.

So I tried adding the source to the Crew itself,

return Crew(
	agents=self.agents,
	tasks=self.tasks,
	process=Process.sequential,
	verbose=True,
	knowledge_sources=[text_source],	
	embedder={
		"provider": "ollama",
		"config": {
			"model": "nomic-embed-text",
		}
	},
)

Doing this, the crew doesn’t entirely crash, it runs, but doesn’t seem to take in the knowledge source:

python main.py
check::  True

[2025-02-19 12:10:56][ERROR]: Failed to upsert documents: Expected Embedings to be non-empty list or numpy array, got [] in upsert.

[2025-02-19 12:10:56][WARNING]: Failed to init knowledge: Expected Embedings to be non-empty list or numpy array, got [] in upsert.
# Agent: Source Agent

Anyone facing the same issues?
Any help will be greatly appreciated!

1 Like

It was a simple error.
Apparently I had not pulled the embeddings from Ollama.
Running the following command helped:

ollama pull nomic-embed-text

If you’re facing the same error, it’s probably the same issue. Just search for the embedding that you’re using (on ollama), and pull the embedding. It should get resolved!

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