返回码
## 返回码
| 返回码 | 提示消息 | 解释 |
| :---- | :------------------------------------------ | :------------------ |
| 10000 | unable to process your request at this time | 系统繁忙，请稍后重试 |
| 10001 | API is undergoing temporary maintenance | API 正在进行临时维护，请稍后再访问 |
| 10002 | Param is invalid | 参数错误 |
| 10003 | Request limit up to top | 请求上限到顶 |
| 11000 | Access token is expired | access\_token 已过期 |
| 11001 | Access token is invalid | access\_token 无效 |
| 11002 | Access token is empty | access\_token 为必填字段 |
| 11003 | Refresh token is expired | refresh\_token 过期 |
| 11004 | Grant type is invalid | grant\_type 参数错误 |
| 21001 | Vehicle is not found | 车辆id不存在 |
| 21002 | Project is not found | 项目不存在 |
| | | |