Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript Gulp Basics Compile Sass with Gulp Add Source Maps to your SaSS

Harpreet Singh
Harpreet Singh
3,830 Points

Sourcemaps not working - Gulp

Getting this error when trying to work with sourcemaps and Gulp:

Gulp Lessons - Add source maps to your Sass.

Harpreets-MacBook-Pro:css harpreetsingh$ gulp compileSass
[14:15:27] Working directory changed to ~/Desktop/Stage1Video3
/Users/harpreetsingh/Desktop/Stage1Video3/node_modules/gulp-sourcemaps/node_modules/strip-bom/index.js:2
module.exports = x => {
                   ^^
SyntaxError: Unexpected token =>
    at exports.runInThisContext (vm.js:73:16)
    at Module._compile (module.js:443:25)
    at Object.Module._extensions..js (module.js:478:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Module.require (module.js:365:17)
    at require (module.js:384:17)
    at Object.<anonymous> (/Users/harpreetsingh/Desktop/Stage1Video3/node_modules/gulp-sourcemaps/src/init/index.internals.js:7:16)
    at Module._compile (module.js:460:26)
    at Object.Module._extensions..js (module.js:478:10)
Harpreets-MacBook-Pro:css harpreetsingh$

1 Answer

Hi Harpreet Singh,

I had the same problem. This error is caused by using an older version of Node. The Strip-bom module is now using ES2015 (ES6) syntax which requires Node 5.0+. (See Node's ES2015 support list here)

To test your version of Node, run:

node -v

If it's less than 5.0, you'll need to update it. You can download the newest version of Node here:

https://nodejs.org/en/

If the gulp command gives a "gulp: command not found" in your console. You should install gulp globally and it is fixed ;)

Hope this helps!

Cheers!