# ONNX033: function-opset-mismatch

**Code:** `ONNX033`

**Name:** `function-opset-mismatch`

**Severity:** error

**Category:** spec

**Target:** function

**Fixable:** No

## Message

Function opset import is incompatible with the model's opset import.

## Suggestion

Align the function's opset imports with those of the model.

## Details

The opset versions imported by a function must be compatible with the
opset versions imported by the model that contains it.