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luisfarzati / express-babelify-middleware

Start developing ES6 in the browser right away, without any build setup
MIT License
24 stars 3 forks source link

Missing ES2015 preset? #6

Closed morerunes closed 7 years ago

morerunes commented 7 years ago

Hey, I pulled this into my project and tried serving up some JS, just like I was doing earlier (successfully) with browserify-middleware, and I got a missing preset error. Any idea what's up?

Error: Couldn't find preset "es2015" relative to directory "/Users/aaronechols/IdeaProjects/morerunes.com/lib/static/js_src" while parsing file: /Users/aaronechols/IdeaProjects/morerunes.com/lib/static/js_src/browserify-test-lib.js at /Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/node_modules/babel-core/lib/transformation/file/options/option-manager.js:281:17 at Array.map (native) at OptionManager.resolvePresets (/Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/node_modules/babel-core/lib/transformation/file/options/option-manager.js:265:20) at OptionManager.mergePresets (/Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/node_modules/babel-core/lib/transformation/file/options/option-manager.js:254:10) at OptionManager.mergeOptions (/Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/node_modules/babel-core/lib/transformation/file/options/option-manager.js:239:14) at OptionManager.init (/Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/node_modules/babel-core/lib/transformation/file/options/option-manager.js:338:12) at File.initOptions (/Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/node_modules/babel-core/lib/transformation/file/index.js:216:65) at new File (/Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/node_modules/babel-core/lib/transformation/file/index.js:137:24) at Pipeline.transform (/Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/node_modules/babel-core/lib/transformation/pipeline.js:46:16) at Babelify._flush (/Users/aaronechols/IdeaProjects/morerunes.com/node_modules/express-babelify-middleware/node_modules/babelify/index.js:27:24)

luisfarzati commented 7 years ago

Do you have babel-preset-es2015 installed in your modules? It's a mandatory default unless you specify a different preset in babelifyOptions like this:

babelify('public/app.js', undefined, {
  presets: ['some_other_presets']
})