无效的 XML 注释:无效的字符

XML comment contains invalid XML: A name was started with an invalid character

这是我收到的智能感知文档消息。我的文档显然有问题，但我找不到什么。

    /// <summary>
    /// The local-part of an email adress may use any of these ASCII characters (As according to RFC 5322 <see href="http://tools.ietf.org/html/rfc5322"></see>):
    /// - Uppercase and lowercase English letters (a–z, A–Z) (ASCII: 65-90, 97-122)
    /// - Digits 0 to 9 (ASCII: 48-57)
    /// - Characters !#$%&'*+-/=?^_`{|}~ (ASCII: 33, 35-39, 42, 43, 45, 47, 61, 63, 94-96, 123-126)
    /// - Character . (dot, period, full stop) (ASCII: 46) provided that it is not the first or last character, and provided also that it does not appear two or more times consecutively (e.g. John..Doe@example.com is not allowed.)
    /// - Special characters are allowed with restrictions. They are: Space and "(),:;<>@['] (ASCII: 32, 34, 40, 41, 44, 58, 59, 60, 62, 64, 91-93)
    /// - The restrictions for special characters are that they must only be used when contained between quotation marks, and that 3 of them (The space, backslash ' and quotation mark " (ASCII: 32, 92, 34)) must also be preceded by a backslash ' (e.g. "' '''"").
    /// </summary>

我的猜测是它与所有角色有关，但我真的不知道......