python config_error ai_generated true

werkzeug.routing.exceptions.NoMatchFound: 404 Not Found: The requested URL was not found on the server.

ID: python/flask-url-map-endpoint-not-found

Also available as: JSON · Markdown · 中文
80%Fix Rate
89%Confidence
0Evidence
2024-01-22First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
2.x active — — —
3.x active — — —

Root Cause

The route is not registered (blueprint not registered, typo in path, or app not receiving the request due to wrong `APPLICATION_ROOT`).

generic

中文

路由未注册（蓝图未注册、路径拼写错误，或 `APPLICATION_ROOT` 错误导致应用未接收请求）。

Workarounds

  1. 96% success 
    from app.routes import bp
app.register_blueprint(bp, url_prefix='/api')
  2. 95% success 
    print(app.url_map)

Dead Ends

Common approaches that don't work:

  1. 85% fail

    Hides misconfiguration; real route still missing.

  2. 90% fail

    Host matching only; doesn't register routes.