"npm start" error

I would like to know, please, why when I run the "npm start" command in Windows PowerShell on my Windows 10, this message shown below appears? MongooseError: The `uri` parameter to `openUri()` must be a string, got "undefined". Make sure the first parameter to `mongoose.connect()` or `mongoose.createConnection()` is a string. at NativeConnection.createClient (/home/LEONARDO/agenda/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js:206:11) at NativeConnection.openUri (/home/LEONARDO/agenda/node_modules/mongoose/lib/connection.js:759:34) at Mongoose.connect (/home/LEONARDO/agenda/node_modules/mongoose/lib/index.js:405:15) at Object.<anonymous> (/home/LEONARDO/agenda/server.js:5:10) at Module._compile (node:internal/modules/cjs/loader:1159:14) at Module._extensions..js (node:internal/modules/cjs/loader:1213:10) at Module.load (node:internal/modules/cjs/loader:1037:32) at Module._load (node:internal/modules/cjs/loader:878:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12) at node:internal/main/run_main_module:23:47 [nodemon] clean exit - waiting for changes before restart

Leonard Barros ∙

Lvl 4

∙ 1y ago