```
0f8ab043896e4a02dbfc11d8e8628e6c56a030437dd1e4d65c613f8a34e1bd24.css.gz
       Webpacker is installed 🎉 🍰
       Using /tmp/build_dfbe3ef500b7290579dd09298cbc25ff/config/webpacker.yml file for setting up webpack paths
       Compiling…
       Compilation failed:
       /tmp/build_dfbe3ef500b7290579dd09298cbc25ff/vendor/bundle/ruby/2.3.0/gems/webpacker-3.5.3/lib/webpacker/webpack_runner.rb:11:in `exec': No such file or directory - /tmp/build_dfbe3ef500b7290579dd09298cbc25ff/node_modules/.bin/webpack (Errno::ENOENT)
       	from /tmp/build_dfbe3ef500b7290579dd09298cbc25ff/vendor/bundle/ruby/2.3.0/gems/webpacker-3.5.3/lib/webpacker/webpack_runner.rb:11:in `block in run'
       	from /tmp/build_dfbe3ef500b7290579dd09298cbc25ff/vendor/bundle/ruby/2.3.0/gems/webpacker-3.5.3/lib/webpacker/webpack_runner.rb:10:in `chdir'
       	from /tmp/build_dfbe3ef500b7290579dd09298cbc25ff/vendor/bundle/ruby/2.3.0/gems/webpacker-3.5.3/lib/webpacker/webpack_runner.rb:10:in `run'
       	from /tmp/build_dfbe3ef500b7290579dd09298cbc25ff/vendor/bundle/ruby/2.3.0/gems/webpacker-3.5.3/lib/webpacker/runner.rb:6:in `run'
       	from ./bin/webpack:15:in `<main>'
       
       
 !
 !     Precompiling assets failed.
 !
 !     Push rejected, failed to compile Ruby app.
 !     Push failed
```

yarnのバージョンエラー

【package.json】

```
{
  "name": "push-request-v2",
  "private": true,
  "dependencies": {
    "@rails/webpacker": "3.5"
  },
  "devDependencies": {
    "webpack-dev-server": "2.11.2"
  },
  "engines": { ★
    "yarn": ">= 0.25.2"
  }
}
```

参考
https://github.com/rails/webpacker/issues/1282
http://more-caffeine.hatenablog.com/entry/2018/03/09/190556


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