# Django配置错误：应用标签不唯一，重复：myapp

- **ID:** `python/django-app-not-registered`
- **领域:** python
- **类别:** config_error
- **验证级别:** ai_generated
- **修复率:** 80%

## 根因

在INSTALLED_APPS中注册了两个具有相同app_label的不同应用。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| 3.x | active | — | — |

## 解决方案

1. **Change app_label in AppConfig** (95% 成功率)
   ```
   class MyappConfig(AppConfig):
    name = 'myapp'
    label = 'myapp_unique'
   ```
2. **Remove duplicate app entry** (90% 成功率)
   ```
   Remove one of the duplicate entries from INSTALLED_APPS.
   ```

## 无效尝试

- **Removing both apps** — Loses functionality. (70% 失败率)
- **Renaming app folder only** — app_label remains same. (90% 失败率)