'broccoli-babel-transpiler is opting out of caching' warning

[cesarizu]

When running an ember-cli app I see the following warning:

WARNING: broccoli-babel-transpiler is opting out of caching due to a plugin that does not provide a caching strategy: `function (babel) {
    var t = babel.types;

    return new babel.Transformer('babel-plugin-feature-flags', {
      CallExpression: function(node, parent, scope, file) {
        var callee = this.get('callee');
        if (callee.referencesImport(options.import.module, options.import.name)) {
          var featureName = getFeatureName(node);
          if (featureName in options.features) {
            var value = options.features[featureName];

            if (typeof value === 'boolean') {
              this.replaceWith(t.literal(value));
            }
          } else {
            file.log.error("An unknown feature '" + featureName + "'' was encountered");
          }
        }
      }
    });
  }`.

I suspect this is making the builds slower, is there something I can do about this?

P.S. With some guidance I could prepare a PR to fix this issue.

[Turbo87]

this should be resolved by #12 already. try to run npm ls babel-plugin-feature-flags to see if you have an outdated dependency somewhere.

[cesarizu]

Thank you. I had an outdated dependency that was using this plugin.

[tinyweasel]

This is happening to me too, and I'm getting 'empty' for the npm command. It also doesn't seem to be happening anyone else on my team, and we should (should) have the same dependencies.

[kanongil]

I'm seeing this after updating to ember-cli@2.15.1 from 2.14, and have no idea on how to fix it.

Note: the plugin that is reported for me is: babel-plugin-transform-es2015-block-scoping

[EstesE]

I'm seeing this as well after upgrading Ember to 2.15.1

X@X ~/source-git/web-content-uploader $ npm ls babel-plugin-feature-flags
web-content-uploader-electron@0.0.0 /home/machine/source-git/web-content-uploader
└─┬ ember-data@2.15.0
└── babel-plugin-feature-flags@0.3.1

Dropping ember-data fixed it for me. I wasn't using ember-data so no big deal I suppose.

[XaserAcheron]

Same here --I just upgraded ember and ember-cli to 2.15 without issue, but I'm seeing the same thing after updating ember-data. The app still builds and works just fine, for the record.

Since this is a closed issue, this is probably "open a new one" territory. Should that be done on this repo or the main ember-cli one, though?