RAG not working with Anthropic Key and JS-SDK

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From the error you have, it looks like you might have misconfigured your collection.

Did you include the generative anthropic module or a vectorizer module??

The snippet you shared (minus the “;” before generate) worked for me with this collection configuration.

await client.collections.create({
      name: 'Collection',
      // Define your vectorizer and Anthropic generative model
      vectorizers: weaviate.configure.vectorizer.text2VecOpenAI({
        sourceProperties: ['title','text']
      }),
      generative: weaviate.configure.generative.anthropic(),
      multiTenancy: weaviate.configure.multiTenancy({enabled: true, autoTenantCreation: true})
    });

Let me know if any of these fix the issue for you.