E-PE0007 — Invalid protobuf message

Error Type

Protobuf Error

Phase

loading a model via protobuf (from_protobuf)

Python exception

jijmodeling.ProtobufError

Message

Invalid protobuf message; the bytes are corrupted or were not produced by JijModeling

Cause

The input could not be parsed as a JijModeling protobuf message at all. The bytes are corrupted, truncated, or come from a different serialization format entirely.

Fix

Verify the byte source: make sure you are loading the exact output of JijModeling’s to_protobuf, transferred and stored without modification (binary mode, no text re-encoding). Re-export the model from the source if needed.