Response object is using deprecated @ember/error

[jkantner]

When I use the special Response object from miragejs, this deprecation warning appears in the console:

DEPRECATION: The @ember/error package merely re-exported the native Error and is deprecated. Please use a native Error directly instead. [deprecation id: deprecate-ember-error] This will be removed in ember-source 5.0.0. See https://deprecations.emberjs.com/v4.x/#toc_deprecate-ember-error for more details.
    @http://localhost:4200/assets/vendor.js:23477:17
    raiseOnDeprecation@http://localhost:4200/assets/vendor.js:23381:13
    @http://localhost:4200/assets/vendor.js:23477:17
    handleDeprecationWorkflow@http://localhost:4200/assets/vendor.js:56307:13
    @http://localhost:4200/assets/vendor.js:23477:17
    deprecationCollector@http://localhost:4200/assets/vendor.js:56342:9
    @http://localhost:4200/assets/vendor.js:23477:17
    invoke@http://localhost:4200/assets/vendor.js:23486:23
    deprecate@http://localhost:4200/assets/vendor.js:23454:28
    EmberDebugConstructor@http://localhost:4200/assets/vendor.js:24586:49
    AdapterError@http://localhost:4200/assets/vendor.js:57098:36
    ErrorClass@http://localhost:4200/assets/vendor.js:57129:28
    handleResponse@http://localhost:4200/assets/vendor.js:59245:42
    ajaxError@http://localhost:4200/assets/vendor.js:59534:39
    @http://localhost:4200/assets/vendor.js:59322:34
    asyncFunctionResume@[native code]
    @[native code]
    promiseReactionJobWithoutPromise@[native code]

It happens when returning the object like this:

new Response(404, {}, { detail: 'Not found' }

It’s seems that a deprecated non-native error is being used somewhere.

[TSenter]

Where did you import Response from? An older version of ember-cli-mirage re-exported the Response class and might have imported that package. The base miragejs package shouldn't be dependent on Ember.js at all.