INVALID_GRANT("invalid_grant","The provided authorization grant is revoked","提供的Access Grant是无效的、过期的或已撤销的,例如,Authorization Code无效(一个授权码只能使用一次)、Refresh Token无效、redirect_uri与获取Authorization Code时提供的不一致、Devie Code无效(一个设备授权码只能使用一次)等。"),
UNAUTHORIZED_CLIENT("unauthorized_client","The client is not authorized to use this authorization grant type","应用没有被授权,无法使用所指定的grant_type。"),
UNSUPPORTED_GRANT_TYPE("unsupported_grant_type","The authorization grant type is not supported","“grant_type”百度OAuth2.0服务不支持该参数。"),
INVALID_SCOPE("invalid_scope","The requested scope is exceeds the scope granted by the resource owner","请求的“scope”参数是无效的、未知的、格式不正确的、或所请求的权限范围超过了数据拥有者所授予的权限范围。"),
EXPIRED_TOKEN("expired_token","refresh token has been used","提供的Refresh Token已过期"),