python runtime_error ai_generated true

werkzeug.routing.exceptions.BuildError: 无法为端点'user_profile'构建 URL。是否忘记为'user_id'指定值?

werkzeug.routing.exceptions.BuildError: Could not build url for endpoint 'user_profile'. Did you forget to specify values for 'user_id'?

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

其他格式: JSON · Markdown 中文 · English
80%修复率
90%置信度
0证据数
2024-02-18首次发现

版本兼容性

版本状态引入弃用备注
3.x active

根因分析

调用 url_for 函数时,端点需要路径参数,但未提供这些参数。

English

The url_for function is called for an endpoint that expects path parameters, but those parameters are not provided.

generic

解决方案

  1. 100% 成功率
    Provide required parameters: url_for('user_profile', user_id=123)
  2. 80% 成功率
    Make the parameter optional in the route definition: @app.route('/user/<int:user_id>', defaults={'user_id': 0})

无效尝试

常见但无效的做法:

  1. 100% 失败

    The route requires user_id, so it cannot build the URL.

  2. 70% 失败

    Inconsistent endpoint names cause confusion and may lead to other BuildErrors.