# ONNX019: undefined-value-dtype

**Code:** `ONNX019`

**Name:** `undefined-value-dtype`

**Severity:** error

**Category:** spec

**Target:** value

**Fixable:** No

## Message

Value's tensor type has UNDEFINED dtype.

## Suggestion

Set a concrete dtype on the tensor type.

## Details

A value with a tensor type must have a defined dtype (not UNDEFINED).