Ember项目运行报错：ember-cli-babel 5.x已过时，升级后仍无法解决

Hey there, let's work through this frustrating deprecation warning issue together! The root of the problem is that your direct dependency updates didn't address the nested dependency chain causing the warning: emma_drf_forms -> ember-cli-crudities -> ember-array-contains-helper -> ember-cli-babel@5.2.8. The outdated version is buried in a dependency of a dependency, so regular npm update commands won't fix it automatically.

Here are actionable steps to resolve this:

1. Force the nested dependency to use a compatible version #

Most modern package managers let you override nested dependency versions to enforce a supported update.

For npm (v8.3 or newer) #

Add an overrides section to your package.json to tell npm to use a supported ember-cli-babel version for ember-array-contains-helper:

{
  "overrides": {
    "ember-array-contains-helper": {
      "ember-cli-babel": "^6.6.0"
    }
  }
}

Then run this to apply the override:

npm install

For Yarn #

Add a resolutions section to your package.json instead:

{
  "resolutions": {
    "ember-array-contains-helper/ember-cli-babel": "^6.6.0"
  }
}

Then run:

yarn install

2. Check for upstream dependency updates #

First, check if ember-array-contains-helper has a newer version that already uses a supported ember-cli-babel build. If it does:

• Try updating ember-cli-crudities (the dependency that pulls in the outdated helper) first:

  npm update ember-cli-crudities
  

• If that doesn't grab the updated helper, you can manually install the latest version of ember-array-contains-helper directly (if your project's dependency chain allows it):

  npm install ember-array-contains-helper@latest
  

3. Replace the unmaintained dependency (as a last resort) #

If ember-array-contains-helper hasn't been updated in a long time and no compatible version exists, consider swapping it out. Ember has built-in array methods that might replicate this helper's functionality, or you can find an actively maintained alternative helper plugin to use instead.

After trying any of these steps, run your Ember project again — the deprecation warning should be gone!

内容的提问来源于stack exchange，提问作者Christopher Cheok