python runtime_error ai_generated true

werkzeug.routing.exceptions.BuildError: Could not build url for endpoint 'user_detail' with values ['id']. Did you mean 'user_detial' instead?

ID: python/werkzeug-build-error-endpoint

Also available as: JSON · Markdown · 中文
80%Fix Rate
89%Confidence
0Evidence
2024-09-03First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.0.x active — — —

Root Cause

url_for() references an endpoint name that is not registered, or required URL parameters are missing/misnamed.

generic

中文

url_for() 引用了未注册的端点名称，或缺少/命名错误的必需 URL 参数。

Workarounds

  1. 95% success 
    Verify endpoint name: `print(app.url_map)` and use the exact function name or `blueprint.function_name`.
  2. 90% success 
    Pass all required params: `url_for('user_detail', user_id=user.id)` matching the route `<int:user_id>`.

Dead Ends

Common approaches that don't work:

  1. 80% fail

    Breaks when routes change; loses blueprint prefixes and URL-encoding.

  2. 90% fail

    Does not fix unknown endpoint; still raises BuildError.