通过 Web UI 编译已有应用时出错

[fengyily]

在Web UI 添加一个应用后，点编译时，不做任何修改，点 Save，出现以下错误：

site_name must contain only lowercase letters, digits and hyphens, start with a letter, be 3-63 characters long, and must not start/end with a hyphen or contain consecutive hyphens