Ionic-framework: Upgrade to 3.6.0 - ionic serve - Error: Cannot find module 'fs-extra'

[longzheng]

Ionic version: (check one with "x")
[ ] 1.x (For Ionic 1.x issues, please use https://github.com/ionic-team/ionic-v1)
[ ] 2.x
[x] 3.x

I'm submitting a ... (check one with "x")
[x] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://forum.ionicframework.com/ or http://ionicworldwide.herokuapp.com/

Current behavior:
I upgraded a 3.5.3 project to 3.6.0 using the steps on the releases page https://github.com/ionic-team/ionic/releases/tag/v3.6.0

After I upgraded, running ionic serve prompted me to upgrade a number of CLI packages which I did

PS C:\Users\longz\Documents\GitHub\mypal-ionic> ionic serve
[WARN] No local CLI detected.
       Starting with CLI 3.6, the CLI must be installed locally to use local CLI plugins.

? Install now? Yes
> npm install --save-dev --save-exact ionic@latest
√ Running command - done!
[OK] Installed Ionic CLI locally!

Please re-run your command.
PS C:\Users\longz\Documents\GitHub\mypal-ionic> ionic serve
? Local plugin @ionic/cli-plugin-cordova has an update available (1.4.1 => 1.5.0)! Would you like to install it? Yes
> npm install --save-dev --save-exact @ionic/cli-plugin-cordova@latest
√ Running command - done!
[OK] Updated @ionic/cli-plugin-cordova to 1.5.0! 🎉
? Local plugin @ionic/cli-plugin-gulp has an update available (1.0.2 => 1.1.0)! Would you like to install it? Yes
> npm install --save-dev --save-exact @ionic/cli-plugin-gulp@latest
√ Running command - done!
[OK] Updated @ionic/cli-plugin-gulp to 1.1.0! 🎉
? Local plugin @ionic/cli-plugin-ionic-angular has an update available (1.3.2 => 1.4.0)! Would you like to install it? Yes
> npm install --save-dev --save-exact @ionic/cli-plugin-ionic-angular@latest
√ Running command - done!
[OK] Updated @ionic/cli-plugin-ionic-angular to 1.4.0! 🎉
> npm dedupe
√ Running command - done!
Error: Cannot find module 'fs-extra'
PS C:\Users\longz\Documents\GitHub\mypal-ionic> ionic serve
Error: Cannot find module 'fs-extra'

Expected behavior:
ionic serve should work

Steps to reproduce:

Related code:

Other information:

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):

PS C:\Users\longz\Documents\GitHub\mypal-ionic> ionic info

cli packages:

    @ionic/cli-plugin-cordova       : 1.5.0 (C:\Users\longz\Documents\GitHub\mypal-ionic\node_modules\@ionic\cli-plugin-cordova)
    @ionic/cli-plugin-gulp          : 1.1.0 (C:\Users\longz\Documents\GitHub\mypal-ionic\node_modules\@ionic\cli-plugin-gulp)
    @ionic/cli-plugin-ionic-angular : 1.4.0 (C:\Users\longz\Documents\GitHub\mypal-ionic\node_modules\@ionic\cli-plugin-ionic-angular)
    @ionic/cli-utils                : 1.6.0 (C:\Users\longz\Documents\GitHub\mypal-ionic\node_modules\@ionic\cli-utils)
    ionic (Ionic CLI)               : 3.6.0 (C:\Users\longz\Documents\GitHub\mypal-ionic\node_modules\ionic)

global packages:

    Cordova CLI : 7.0.1
    Gulp CLI    : CLI version 1.3.0 Local version 3.9.1

local packages:

    @ionic/app-scripts : 2.1.3
    Cordova Platforms  : android 6.2.3 ios 4.4.0
    Ionic Framework    : ionic-angular 3.6.0

System:

    Node : v6.11.0
    OS   : Windows 10
    npm  : 5.2.0

[davec21]

I've had weirdness after updates too. Try deleting your node_modules folder and do an npm install. Make sure to delete the package-lock.json file first!

[jgw96]

Hello! Thanks for using Ionic. This sounds like an npm 5 issue to me. Unfortunately, npm 5 has been pretty buggy. @davec21 's suggestion will fix this issue. I would also recommend updating to npm 5.3.0 as that has a few good bug fixes.

[ionitron-bot[bot]]

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