cannot enable cancellation after promises are in use

[ashnamuh]

Hi, i'm facing following error. I don't what is wrong..

What you are doing?

I'm trying to run a migration:

20170420000245-alter-table-for-idea.js

'use strict';

const Participation = require('../models/').Participation;

module.exports = {
  up: (queryInterface, Sequelize, done) => {
    return queryInterface.sequelize.query(`ALTER TABLE "${Participation.getTableName()}" ALTER COLUMN "introduction" TYPE text;`)
      .then(() => done());
  },

  down: (queryInterface, Sequelize, done) => {
    return queryInterface.sequelize.query(`ALTER TABLE "${Participation.getTableName()}" ALTER COLUMN "introduction" TYPE text;`)
      .then(() => done());
  }
};

What do you expect to happen?

I was expecting the migration to run successfully.

What is actually happening?

Dialect: postgres
Database version: 9.3
Sequelize CLI version: 2.7
sequelize version: 3.30.4
node version: 6.10.2

[sushantdhiman]

Looks like an userland issue, need more details