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[英]Error when deploying Next.js app to vercel with replaceAll function
[英]How to resolve Runtime.UnhandledPromiseRejection error while deploying the next.js project on Vercel and Netlify?
我在 Vercel / Netlify 上部署它時收到此錯誤。 部署時 Vercel 和 Netlify 收到相同的錯誤。 解決此問題的任何步驟都會有所幫助。
數據庫代碼:
import mongoose from 'mongoose';
const connection = {};
async function connect() {
if (connection.isConnected) {
console.log('already connected');
return;
}
if (mongoose.connections.length > 0) {
connection.isConnected = mongoose.connections[0].readyState;
if (connection.isConnected === 1) {
console.log('use previous connection');
return;
}
await mongoose.disconnect();
}
const db = await mongoose.connect(process.env.MONGODB_URI, {
// useNewUrlParser: true,
// useUnifiedTopology: true,
});
console.log('new connection');
connection.isConnected = db.connections[0].readyState;
}
async function disconnect() {
if (connection.isConnected) {
if (process.env.NODE_ENV === 'production') {
await mongoose.disconnect();
connection.isConnected = false;
} else {
console.log('not disconnected');
}
}
}
function convertDocToObj(doc) {
doc._id = doc._id.toString();
doc.createdAt = doc.createdAt.toString();
doc.updatedAt = doc.updatedAt.toString();
return doc;
}
const db = { connect, disconnect, convertDocToObj };
export default db;
錯誤截圖
錯誤:
(
{"errorType":"Runtime.UnhandledPromiseRejection","errorMessage":"MongooseError: The
uriparameter to
must be a string, got \"undefined\". Make sure the first parameter to
or
mongoose.createConnection()is a string.","trace":["Runtime.UnhandledPromiseRejection: MongooseError: The
uriparameter to
must be a string, got \"undefined\". Make sure the first parameter to
mongoose。 connect()or
mongoose.createConnection()is a string."," at process.<anonymous> (/var/runtime/index.js:35:15)"," at process.emit (events.js:314:20)"," at processPromiseRejections (internal/process/promises.js:209:33)"," at processTicksAndRejections (internal/process/task_queues.js:98:32)"]}
)
1)從 mongoDB 檢查你的連接字符串。在你的.env
文件中並將它與來自圖集的數據進行比較
你的用戶是正確的? 你的密碼正確嗎? 你的集群名稱是一樣的? 你的數據庫名稱是一樣的?
1a) 確保您的.env
在根文件夾中!
2)在mongoDB Atlas中查看網絡訪問IP。 活躍嗎? 如果沒有,建立新的。
3) 如果您使用的是VPN ,請將其關閉。
4) 最后 =>https://vercel.com/docs/concepts/projects/environment-variables
我希望它能幫助你; 祝你好運 ;-)
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