我正在 NodeJS 中更改密碼，但在請(qǐng)求處理過(guò)程中出現(xiàn)以下錯(cuò)誤：(node:16220) UnhandledPromiseRejectionWarning: Error: Can't set headers after they are sent.    at validateHeader (_http_outgoing.js:491:11)    at ServerResponse.setHeader (_http_outgoing.js:498:3)    at ServerResponse.header (/home/pbaj/Documents/Projects/syberiaquotes-backend/node_modules/express/lib/response.js:771:10)    at ServerResponse.send (/home/pbaj/Documents/Projects/syberiaquotes-backend/node_modules/express/lib/response.js:170:12)    at ServerResponse.json (/home/pbaj/Documents/Projects/syberiaquotes-backend/node_modules/express/lib/response.js:267:15)    at user.(anonymous function).updateOne.then.catch.err (/home/pbaj/Documents/Projects/syberiaquotes-backend/api/controllers/user.js:284:52)    at <anonymous>    at process._tickCallback (internal/process/next_tick.js:188:7)(node:16220) 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:16220) [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.在我的changePassword路線(xiàn)中，我采用email,password,newPassword價(jià)值觀和：檢查電子郵件是否存在，如果存在...比較給定的密碼和用戶(hù)密碼，如果它們相同...bcrypt.hash 函數(shù)采用 newPassword，從中生成哈希值，并保存到 mongoDB如果我提供正確的電子郵件和密碼，上面的所有要點(diǎn)都已完成，但我明白了UnhandledPromiseRejectionWarning。我看到這個(gè)問(wèn)題的原因是在user[0].updateOne(user[0])函數(shù)內(nèi)部，正是在，catch()但我不知道發(fā)生了什么。我需要[200]'Password changed!'從我的要求的答案，但我得到[401]'Auth failed'becouse的UnhandledPromiseRejectionWarning。