chroma-core/chroma · error · ValueError

Expected SparseVector labels to be a list, got {type(self.la

Error message

Expected SparseVector labels to be a list, got {type(self.labels).__name__}

What it means

Error "Expected SparseVector labels to be a list, got {type(self.labels).__name__}" thrown in chroma-core/chroma.

Source

Thrown at chromadb/base_types.py:52

        if not isinstance(self.indices, list):
            raise ValueError(
                f"Expected SparseVector indices to be a list, got {type(self.indices).__name__}"
            )

        if not isinstance(self.values, list):
            raise ValueError(
                f"Expected SparseVector values to be a list, got {type(self.values).__name__}"
            )

        if len(self.indices) != len(self.values):
            raise ValueError(
                f"SparseVector indices and values must have the same length, "
                f"got {len(self.indices)} indices and {len(self.values)} values"
            )

        if self.labels is not None:
            if not isinstance(self.labels, list):
                raise ValueError(
                    f"Expected SparseVector labels to be a list, got {type(self.labels).__name__}"
                )
            if len(self.labels) != len(self.indices):
                raise ValueError(
                    f"SparseVector labels must have the same length as indices and values, "
                    f"got {len(self.labels)} labels, {len(self.indices)} indices"
                )

        for i, idx in enumerate(self.indices):
            if not isinstance(idx, int):
                raise ValueError(
                    f"SparseVector indices must be integers, got {type(idx).__name__} at position {i}"
                )
            if idx < 0:
                raise ValueError(
                    f"SparseVector indices must be non-negative, got {idx} at position {i}"
                )

View on GitHub (pinned to aecdd12c8a)

When it happens

Trigger: Thrown at chromadb/base_types.py:52 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of chroma-core/chroma@aecdd12c8a (2026-08-16). Data as JSON: /api/errors/fc608496f1484fa8. Report an issue: GitHub.