Common failure modes

Most failures happen at one of six stages:

component release -> graph validation -> file/model binding -> proof -> deployment -> runtime

Start with the stage where the symptom appears. The platform validates the graph for you as you edit it and again at deploy time, so graph-stage problems arrive as issue codes rather than something you check by hand.

Fast Triage

ppl deployment listCopy
ppl container list --deployment <deployment_id>Copy
ppl container logs <container_id>Copy

Frequent Causes

Stage	Common cause
Component release	Missing component.yml, wrong build system, dependency conflict, bad type/config declaration.
Graph validation	Missing input edge, incompatible types, missing required file, missing required parameter.
File/model binding	Wrong upload type, wrong file key, pre-tarred Triton model, file config overwrote params.
Proof	Valid shape but wrong semantic output, missing labels/tokenizer/preprocessing, zero-frame replay.
Deployment	No runtime capacity, cold model load, endpoint minted before worker listens.
Runtime	Component crash, missing file/secret, model load failure, wrong container inspected.

For model and data work, do not stop at clean graph validation. Run representative fixtures and record observed output, container logs, and mismatch risks.

Related

• Prove backend behavior - turn a run into evidence.
• File upload and backend binding - fix model/data artifact binding.
• File types - the file_type mismatch that rejects a bind.
• Deploy and monitor - inspect deployments, containers, and logs.