一个控制器的操作未出现在帮助文档中

我有一个MVC Web API项目,一切都很好,但出于某种原因,帮助文档中只有一个控制器的条目没有出现。

这一切都很好,直到最近,不幸的是,虽然我不知道它在什么时候消失了,但它肯定曾经在那里。

XML注释看起来都不错。 XmlDocument。xml文件看起来正确。

如何确保此控制器的操作出现?

如果有帮助,这是第一个动作的剪报:

public class UserController : ApiController
{
    /// <summary>
    /// Get details of a user or all users, including accounts and group memberships
    /// </summary>
    /// <param name="username">The name of the user, if a single result is required</param>
    /// <param name="account">The account id, if multiple results are required</param>
    /// <param name="offset">The first row to return</param>
    /// <param name="limit">The maximum number of rows to return</param>
    /// <param name="sortby">The column to sort by, if required</param>
    /// <param name="order">The sort order; asc[ending] (default) or desc[ending]</param>
    /// <returns>Response structure including status and error message (if appropriate), as well as User structure including account and group details</returns>
    [Route("user")]
    [CombinedAuthentication(AuthLevel = "2")]
    [HttpGet]
    [AcceptVerbs("GET")]
    public UserGetResponse Get(string username = "", int account = 0, int offset = 0, int limit = 0, string sortby = "", string order = "")
    {
        if (!string.IsNullOrEmpty(username))
        {
            return new UserGetResponse(username);
        }
        else
        {
            return new UserGetResponse(account, offset, limit, sortby, order);
        }
    }

}