With the availability of Angular 2, I started experimenting with Angular CLI, a CLI for Angular 2 applications based on the ember-cli project. The project is still young and I encountered a lot of issues along the way.
Here are some tips and lesssons I learned:
- Update Node to the latest LTS version(you need at least version 4 or later).
- Run ng in a command prompt with Admin permissions
- Be patient. The initial installation as well as
ng newtake a looooong time.
- On Windows you need to run the
servecommands with Admin permissions, otherwise the performance is awful.
Some errors I got:
- “ng is not recognized as an internal or external command”
- Check that %AppData%\npm is added to the PATH variable.
- “SyntaxError: Use of const in strict mode.”
- You are still using an older Node version that doesn’t support some of the new ES2015 features
- “Error: Cannot find module 'exists-sync'”
- For an unknown reason NPM still couldn’t find some packages. I installed them manually using the following command
- npm install --save exists-sync
- “The Broccoli Plugin: [BroccoliTypeScriptCompiler] failed with:Error: EMFILE: too many open files”
- This happened when I tried to run ng test. As a workaround you can run ng build first and then run ng test –-watch false. This will run ng test without watching for file changes.