Trying to call the method in UserSchema

Question

I'm trying to call the makePassword method into the UserSchema.pre('save'). but get this error

(node:8252) DeprecationWarning: Mongoose: mpromise (mongoose's default promise library) is deprecated, plug in your own promise library instead: http://mongoosejs.com/docs/promises.html

I've also tries with including the mongoose.Promise = global.Promise; before mongoose.connect(config.database);, Please suggest

Answer 1

this generally happens when a library is missing out..like Bluebird, Q...so try including it in . mongoose.Promise = require('Q');