Webpack dev server exception "Unexpected token ILLEGAL" #20

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 [71] (webpack)-dev-server/~/sockjs-client/lib/facade.js 723 bytes {0} [built]
 [72] (webpack)-dev-server/~/strip-ansi/index.js 161 bytes {0} [built]
 [73] (webpack)-dev-server/~/strip-ansi/~/ansi-regex/index.js 135 bytes {0} [built]
 [74] (webpack)/hot/dev-server.js 1.85 kB {0} [built]
 [75] (webpack)/hot/log-apply-result.js 813 bytes {0} [built]
ERROR in /Users/leow/OTTO/WORKSPACE/vue-hackernews/node_modules/babel-core/node_modules/lodash/object/keysIn.js:55
 for (var key in object
Unexpected token ILLEGAL
 @ multi main
webpack: bundle is now VALID.