Log Files

File	Description
maafw.log	MaaFramework runtime log (project root)
debug/	Debug screenshots

Log Analysis Tools

Use MaaLogAnalyzer to visually analyze maafw.log:

1. Download and launch MaaLogAnalyzer
2. Open maafw.log (project root) or the debug/ directory
3. Filter by task/node and inspect each recognition record's reco_id, algorithm, box, and details; compare with the debug/ screenshots to see the actual screen state

In addition, MaaEvidenceKit is a deterministic evidence extraction and diagnostic toolkit for MaaFramework (CLI/SDK): it extracts locatable runtime and static evidence from logs and the project via MaaLogAnalyzer, outputting JSON/text for on-demand diagnosis by AI assistants such as Codex or Claude Code.

During development you can also use Maa Pipeline Support (VSCode extension) to watch recognition in real time (see Environment Setup).

Categories

Startup Issues

Agent fails to start

Error: Python >=3.13,<3.14 is required

Cause: Wrong Python version. Project requires Python 3.13.x.

Fix: Use uv for Python management, run uv sync.

Custom module not registered

Error: Custom action/recognition returns success: false

Cause: Module not added to RECOGNITION_MODULES in agent/custom/recognition/__init__.py.

Fix: Add module name, e.g. RECOGNITION_MODULES = ("farm_resources", "pvp", "stamina", "event_stage") (check agent/custom/recognition/__init__.py for the actual list).

Runtime Issues

Pipeline node stuck

Symptoms: Task hangs on a node until timeout.

Common causes:

1. Stale screenshot — screen hadn't settled when captured. Use post_wait_freezes to wait for the screen to settle, or add an intermediate recognition node to confirm the target screen appeared before continuing
2. ROI mismatch — Game UI changed, update ROI
3. Outdated template — UI changed, re-screenshot
4. Missing fallback — Critical nodes lack on_error

JumpBack node misbehavior

Cause: JumpBack node has next field. JumpBack nodes must NOT have next.

Stamina drain mode loops

Cause: ExitStage and ExitStageConfirm override points to BattleStage instead of exit path.

Fix: Check the clear stamina mode override in tasks/farm_resources.json.

Recognition Issues

Stage not found

Symptoms: CheckResourceStage keeps failing

Common causes:

1. Stage locked — update lock_icon.png template
2. Stage list offset — confirm SwipeToBegin executed
3. Wrong stage_index or resource_type in params

Stamina popup not recognized

Cause: no_stamina.png template missing or wrong ROI.

Schema validation fails

Error: must NOT have unevaluated properties

Cause: Using unsupported field in the current schema.

Fix: Remove unsupported fields or update tools/schema/ definitions.

Log Analysis

Runtime logs (maafw.log) contain detailed recognition results:

{
    "reco_id": 400000431,
    "algorithm": "Custom",
    "box": null,
    "detail": {"all": [], "best": null},
    "name": "PVP.ReadResult"
}

• box: null — no match
• box: [x, y, w, h] — match found
• debug/ screenshots show actual screen state

Verifying a Fix

Verify your fix before committing:

1. Local checks: pnpm check (also run pnpm check:py if Python code changed)
2. Re-run in the GUI: enable the affected task and run it 2–3 times to confirm the issue is gone
3. Regression check: inspect debug/ screenshots and maafw.log to confirm recognition results match expectations and no error paths (on_error) fired unexpectedly
4. Edge cases: if the change touches flow branches, also verify adjacent states (startup/home/popups) are unaffected

If the fix changes behavior, update the corresponding Protocol docs and their acceptance checklists (e.g. Event Stages).

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