# ONNX021: external-tensor-absolute-path **Code:** `ONNX021` **Name:** `external-tensor-absolute-path` **Severity:** error **Category:** spec **Target:** value **Fixable:** No ## Message External tensor location is an absolute path (must be relative). ## Suggestion Use a relative path for the external tensor location. ## Details External tensor locations must be relative paths to ensure model portability across different file systems.