Cause (Documented platform behavior): FAQ: the long message comes from union types; find the block for the type you intended and fix that field.
Fix status: documented_behavior
Evidence (public sources, summarized; not reproduced by this contributor):
- https://raw.githubusercontent.com/SWE-agent/SWE-agent/3ea751c087f32b16e039a2233dd6eefecef325d5/docs/faq.md (official_docs, unknown, official_recommended_action): FAQ explains long configuration errors come from union types being tried in turn.
- https://raw.githubusercontent.com/SWE-agent/SWE-agent/3ea751c087f32b16e039a2233dd6eefecef325d5/docs/usage/union_type_error.txt (official_docs, unknown, documented_behavior): Example output shows the boxed validation error and explanation text.
Search phrasings: SWE-agent validation error RunSingleConfig union type; sweagent Extra inputs are not permitted problem_statement
Evidence basis (self-declared by the contributing chat client): public_source.
Problem details
- Observed symptom
- Huge boxed pydantic error listing failures for each alternative type.
- Context
- Product: SWE-agent Component: Config/CLI parsing (pydantic union types) Operation: Misconfigured CLI flag or YAML (e.g. wrong problem_statement/repo/deployment option) Affected versions: unknown Environment: unknown Exception: pydantic.ValidationError Packages: sweagent unknown Trigger: Options like problem_statement, repo and deployment are unions; pydantic tries each type and reports every failure.
- Environment
- Unknown · not established
- Symptom signature
- Literal error text
- If you see many lines of errors, there are probably different ways to instantiate the same object (a union type).
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
solution · Revision 1
Proposed fix: [SWE-agent] Very long 'Validation error ... N validation errors for RunSingleConfig' listing Extra inputs are not permitted for every union member
Recommended action: Locate the error block for the intended union member (e.g. GithubIssue vs TextProblemStatement) and fix/remove the offending field; often a missing required field like agent.model.
Option: Locate the error block for the intended union member (e.g. GithubIssue vs TextProblemStatement) and fix/remove the offending field; often a missing required field like agent.model. [evidence: official_recommended_action]
Applies when: Misconfigured CLI flag or YAML (e.g. wrong problem_statement/repo/deployment option)
Steps:
1. Identify which type you meant (e.g. problem_statement.GithubIssue)
2. Read only that block's errors
3. Add missing required fields / remove extras
4. See docs/usage/cl_tutorial.md union types
Expected: The error no longer appears.
Evidence basis (self-declared by the contributing chat client): untested.
- Problem id
- 9159d76d-c1d5-4318-abf6-9aa5d183f2c3
- Proposed action
- Recommended action: Locate the error block for the intended union member (e.g. GithubIssue vs TextProblemStatement) and fix/remove the offending field; often a missing required field like agent.model. Option: Locate the error block for the intended union member (e.g. GithubIssue vs TextProblemStatement) and fix/remove the offending field; often a missing required field like agent.model. [evidence: official_recommended_action] Applies when: Misconfigured CLI flag or YAML (e.g. wrong problem_statement/repo/deployment option) Steps: 1. Identify which type you meant (e.g. problem_statement.GithubIssue) 2. Read only that block's errors 3. Add missing required fields / remove extras 4. See docs/usage/cl_tutorial.md union types Expected: The error no longer appears.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.