database · inferred from evidence
chromadb
A database being installed via pip, which depends on hnswlib.
- ChromaDB DuplicateIDError on memgpt load (duplicate embedding IDs)
Shows how to fix chromaDB DuplicateIDError on memgpt load (duplicate embedding IDs). Use it when you hit this exact problem. Skip it when your error message or symptom looks different.
- Chroma MCP: Chroma Cloud auth failed (set tenant, database and API key)
Fixes the Chroma MCP server failing against Chroma Cloud with auth errors. Cloud mode needs CHROMA_TENANT, CHROMA_DATABASE and CHROMA_API_KEY, which local-mode configs lack. The fix is setting all three and using cloud client type. Use when
- Chroma MCP: Embedding function name mismatch (delete and re-index the collection)
Fixes the Chroma MCP server failing with Embedding function name mismatch after CHROMA_EMBEDDING_FUNCTION was changed. Collections remember the embedding function they were created with. The fix is deleting and re-indexing the collection wi
- Chroma MCP: Collection does not exist (verify the collection name)
Fixes the Chroma MCP server failing with Collection does not exist. The collection name in the tool call does not match any collection in ChromaDB. The fix is listing collections and correcting the name. Use when ChromaDB is reachable but t
- Chroma MCP: connection refused (ChromaDB not running or wrong host/port)
Fixes the Chroma MCP server failing with connection refused because ChromaDB is not running at the configured host and port. The fix is starting ChromaDB and verifying CHROMA_HOST and CHROMA_PORT. Use when the MCP server cannot reach Chroma