Within your ember-cli project folder, run the following:

ember install ember-concurrency

(Recommended) To use with native JavaScript/TypeScript classes and decorator syntax as used throughout this documentation, ensure you also meet the following in your application/addon:

  • At least ember-cli-babel@^7.7.2
  • At least @babel/core@^7.5.0 (as a transitive dependency via ember-cli-babel)
  • At least ember-cli-typescript@^2.0.0 and TypeScript 3.7+, if you want to use it with TypeScript
  • @ember-decorators/babel-transforms is _not_ installed
  • Below Ember v3.10: ember-decorators-polyfill is needed