The this.set() method is a classic ember object method, and can't be used in octane classes. You can refactor this usage to use a utility version instead (e.g. get(this, 'foo')), or to use native/modern syntax instead. Alternatively, you can add the @classic decorator to this class to continue using classic APIs

Don't use observers

The this.set() method is a classic ember object method, and can't be used in octane classes. You can refactor this usage to use a utility version instead (e.g. get(this, 'foo')), or to use native/modern syntax instead. Alternatively, you can add the @classic decorator to this class to continue using classic APIs

The this.set() method is a classic ember object method, and can't be used in octane classes. You can refactor this usage to use a utility version instead (e.g. get(this, 'foo')), or to use native/modern syntax instead. Alternatively, you can add the @classic decorator to this class to continue using classic APIs

Don't use observers

Don't use computed properties with native classes. Use getters or @Tracked properties instead

Don't use a mixin

Use Glimmer components(@glimmer/component) instead of classic components(@ember/component)

Don't use computed properties with native classes. Use getters or @Tracked properties instead

Don't use computed properties with native classes. Use getters or @Tracked properties instead