yo polymer building error

Question

I have just updated my Polymer development tools and I get some errors, although everything was working fine before. Here is what I get when trying 'yo polymer' in the console :

/usr/lib/node_modules/generator-polymer/node_modules/yeoman-generator/lib/base.js:444 this.env.sharedFs.on('change', writeFiles); ^ TypeError: Object # has no method 'on' at run (/usr/lib/node_modules/generator-polymer/node_modules/yeoman-generator/lib/base.js:444:21) at Environment.run (/usr/lib/node_modules/yo/node_modules/yeoman-environment/lib/environment.js:330:20) at /usr/lib/node_modules/yo/lib/cli.js:91:9 at Environment.resolver.lookup (/usr/lib/node_modules/yo/node_modules/yeoman-environment/lib/resolver.js:50:12) at init (/usr/lib/node_modules/yo/lib/cli.js:66:7) at pre (/usr/lib/node_modules/yo/lib/cli.js:53:3) at Object. (/usr/lib/node_modules/yo/lib/cli.js:155:1) at Module._compile (module.js:456:26) at Object.Module._extensions..js (module.js:474:10) at Module.load (module.js:356:32)

Or when I type 'yo' in the console and choose 'polymer' :

/usr/lib/node_modules/yo/node_modules/inquirer/node_modules/rx/dist/rx.all.js:9379 throw e; ^ TypeError: Object # has no method 'on' at run (/usr/lib/node_modules/generator-polymer/node_modules/yeoman-generator/lib/base.js:444:21) at Environment.run (/usr/lib/node_modules/yo/node_modules/yeoman-environment/lib/environment.js:330:20) at module.exports (/usr/lib/node_modules/yo/lib/routes/run.js:20:11) at Router.navigate (/usr/lib/node_modules/yo/lib/router.js:36:30) at PromptUI.completed (/usr/lib/node_modules/yo/lib/routes/home.js:76:20) at PromptUI.onCompletion (/usr/lib/node_modules/yo/node_modules/inquirer/lib/ui/prompt.js:69:10) at AnonymousObserver.Rx.AnonymousObserver.AnonymousObserver.completed (/usr/lib/node_modules/yo/node_modules/inquirer/node_modules/rx/dist/rx.all.js:1965:12) at AnonymousObserver.Rx.internals.AbstractObserver.AbstractObserver.onCompleted (/usr/lib/node_modules/yo/node_modules/inquirer/node_modules/rx/dist/rx.all.js:1902:14) at AutoDetachObserverPrototype.completed (/usr/lib/node_modules/yo/node_modules/inquirer/node_modules/rx/dist/rx.all.js:9397:23) at AutoDetachObserver.Rx.internals.AbstractObserver.AbstractObserver.onCompleted >(/usr/lib/node_modules/yo/node_modules/inquirer/node_modules/rx/dist/rx.all.js:1902:14)

Any idea on what when wrong with the updates (no error thrown).

Thanks for reading and all the best.

PS : I am running on

• Fedora 20
• npm 2.5.1
• yo 1.4.5
• generator-polymer 0.7.0
• gem 2.1.11
• sass 3.4.12
• compass 1.0.3

Answer 1

Update yo (npm install -g yo). I had the same problem.