【发布时间】：2017-12-28 19:39:13
【问题描述】：
当我升级到 mongoose 4.13.8 和 sendgrid 6.1.4 时出现此错误。想了解如何解决我这边的问题，或者我是否需要恢复到以前版本的一个或两个？
(node:4862) DeprecationWarning: Mongoose: mpromise (mongoose's default promise library) is deprecated, plug in your own promise library instead: http://mongoosejs.com/docs/promises.html
(node:4862) UnhandledPromiseRejectionWarning: Error: Unauthorized
at Request.http [as _callback] (node_modules/@sendgrid/client/src/client.js:124:25)
at Request.self.callback (node_modules/request/request.js:186:22)
at Request.emit (events.js:159:13)
at Request.<anonymous> (node_modules/request/request.js:1163:10)
at Request.emit (events.js:159:13)
at IncomingMessage.<anonymous> (node_modules/request/request.js:1085:12)
at Object.onceWrapper (events.js:254:19)
at IncomingMessage.emit (events.js:164:20)
at endReadableNT (_stream_readable.js:1062:12)
at process._tickCallback (internal/process/next_tick.js:152:19)
(node:4862) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:4862) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
冒犯的线路似乎来自node_modules/@sendgrid/client/src/client.js:124:25，对吧？
那行在这里： https://github.com/sendgrid/sendgrid-nodejs/blob/master/packages/client/src/client.js#L124
知道如何解决吗？我想我会回滚两者，直到我更好地理解问题！提前致谢！
【问题讨论】：
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mongoose 和 sendgrid 是不相关的东西做不相关的功能。
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另外，请考虑 mongoose mpromise depreciation 警告，并像 bluebird 一样插入您选择的 promise 库。
标签： node.js mongodb mongoose sendgrid sendgrid-api-v3