First, make sure you you are fully upgraded to Ember and Ember-CLI 3.14, including applying any blueprint changes (using ember-cli-update is recommended). Notably, the blueprint updates should have upgraded the following packages in your
package.json, make sure you have them installed with npm/yarn:
We are working on a tool that automate the following steps for you, if you are up for trying the work-in-progress tool, checkout its README. Otherwise, follow these steps manually.
Set the following optional features to the Octane values:
$ ember feature:disable jquery-integration $ ember feature:enable template-only-glimmer-components $ ember feature:disable application-template-wrapper
(See also My app uses jQuery... and What about default async observers?)
Add the following packages to your
^0.14.0-alpha.13(Note: 0.13 does not work!)