Unhandled rejection TypeError: Dependency name must be given as a not empty string

[Zach Guo]

I got this error when codes hitting require('./models').sequelize.sync(). (models is a directory created by running command sequelize init) Could anyone give me some hints about what induces this error?

> node src/server.js

Unhandled rejection TypeError: Dependency name must be given as a not empty string
    at /Users/syg/Repos/example/node_modules/sequelize/node_modules/toposort-class/toposort.js:37:31
    at Array.forEach (native)
    at Toposort.self.add (/Users/syg/Repos/example/node_modules/sequelize/node_modules/toposort-class/toposort.js:35:22)
    at /Users/syg/Repos/example/node_modules/sequelize/lib/model-manager.js:89:12
    at Array.forEach (native)
    at ModelManager.forEachModel (/Users/syg/Repos/example/node_modules/sequelize/lib/model-manager.js:58:15)
    at /Users/syg/Repos/example/node_modules/sequelize/lib/sequelize.js:862:23
    at tryCatcher (/Users/syg/Repos/example/node_modules/sequelize/node_modules/bluebird/js/main/util.js:24:31)
    at Promise._settlePromiseFromHandler (/Users/syg/Repos/example/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:454:31)
    at Promise._settlePromiseAt (/Users/syg/Repos/example/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:530:18)
    at Promise._settlePromiseAtPostResolution (/Users/syg/Repos/example/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:224:10)
    at Async._drainQueue (/Users/syg/Repos/example/node_modules/sequelize/node_modules/bluebird/js/main/async.js:182:12)
    at Async._drainQueues (/Users/syg/Repos/example/node_modules/sequelize/node_modules/bluebird/js/main/async.js:187:10)
    at Immediate.Async.drainQueues [as _onImmediate] (/Users/syg/Repos/example/node_modules/sequelize/node_modules/bluebird/js/main/async.js:15:14)
    at processImmediate [as _immediateCallback] (timers.js:358:17)

I'm using sequ...@3.2.0 with HapiJS. An similar repo can be found here. (This repo is indeed working, even with sequelize upgraded to latest version)

Original Stackoverflow Page

[Mick Hansen]

Afraid i haven't seen that specific error before, can you give us a bit more info?

--

Mick Hansen

@mhansendev
mhansen.io

[Jan Aagaard Meier]

The error is happening in toposort.js, which we use to figure out in what order to synchronize models. Do you perchance have any models with an empty string as name?