App not building after installing ember-service-worker

After running ember install ember-service-worker, my app fails to build. I’m not really getting much in terms of console output, but this is what I see:

Could not start watchman
Visit https://ember-cli.com/user-guide/#watchman for more info.
DEPRECATION: Addon files were detected in `/Users/caseyjenks/sites/fitbot-client/node_modules/ember-inject-script/addon`, but no JavaScript preprocessors were found for `ember-inject-script`. Please make sure to add a preprocessor (most likely `ember-cli-babel`) to in `dependencies` (NOT `devDependencies`) in `ember-inject-script`'s `package.json`.
Warning: failed to stat /Users/caseyjenks/sites/fitbot-client/tmp/autoprefixer_filter-tmp_dest_dir-2PQnDGhJ.tmp/assets/failed.png

The deprecation warning shows up in master branch of the project, but the Warning: failed to stat... is new.

Any ideas?

Version: 0.6.12

[pvertenten]

So I solved the issue I believe. Thought I don’t have a long term solution. Maybe report the issue to ember-rails, or see what ember-service-worker is doing with the tmp directory.

The issue seems to be that ember-rails seems to leave a lot of extra things behind in the tmp directory, and this only grows over time while developing the app. I had a few GB of left over data in the tmp directory from previous runs.

… asset_map-cache_path-hsRQ5VAH.tmp broccoli_merge_trees-cache_path-6LVndSRy.tmp broccoli_merge_trees-cache_path-6mz1PwG4.tmp …

With all this left behind stuff and ember-service-worker the build seems to take very long. Not sure what the build is doing, but clearing out the tmp directory before building speeds everything up to basically normal build speed.

[koushik-radhakrishan]

I don’t use ember-CLI-rails but still this is happening. How you guys solved this? Any working solution?