python config_error ai_generated true

werkzeug.routing.exceptions.BuildError: Could not build url for endpoint 'login'

ID: python/flask-redirect-endpoint-error

Also available as: JSON · Markdown · 中文
80%Fix Rate
88%Confidence
0Evidence
2024-01-25First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

The endpoint name used in url_for or redirect does not match any defined route, or required parameters are missing.

generic

中文

url_for或redirect中使用的端点名称与任何定义的路由不匹配，或缺少必需的参数。

Workarounds

  1. 95% success 
    Check the route decorator: @app.route('/login', endpoint='login') or ensure the function name matches.
  2. 90% success 
    Provide required parameters: url_for('user_profile', username='john')

Dead Ends

Common approaches that don't work:

  1. 50% fail

    Using a hardcoded URL instead of url_for can break if routes change.

  2. 70% fail

    Adding a route with a different name does not fix the endpoint mismatch.