# ONNX038: subgraph-variable-shadowing

**Code:** `ONNX038`

**Name:** `subgraph-variable-shadowing`

**Severity:** error

**Category:** spec

**Target:** graph

**Fixable:** No

## Message

Subgraph value name shadows a name from an outer scope.

## Suggestion

Rename the value in the subgraph to avoid shadowing.

## Details

The ONNX spec requires that node output names and names of inputs
and initializers of a subgraph are distinct from names visible in
outer scopes.  Variable shadowing is not allowed.