E0201 — ArtifactParse (backend)

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What happened

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Why

• The artifact was compiled for a different target (e.g. sim artifact passed to a hardware backend that requires target-specific fields)
• The artifact is corrupt (see E0008, E0009)
• The backend implements an older API that does not support the current artifact format version

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How to fix

1. Recompile for the correct target: thx.compile(model, "model.thx", target="loihi2").
2. Verify the artifact is valid: thrindex doctor --check model.thx.
3. Check backend compatibility: ensure the backend driver version matches the artifact format version.

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Example

E0201: backend could not parse artifact
Why: missing required field `loihi2_core_map` — artifact was not compiled for this target
Fix: verify the artifact was produced by `thrindex compile --target loihi2` and is not corrupted
Docs: https://docs.thrindex.com/errors/E0201