Error: app-scripts serve unexpectedly failed #2247

Aaron-Sterling · 2017-05-10T14:31:56Z

Cross-posting an issue I put on app-scripts yesterday in case you guys are a different team.
ionic-app-scripts issue #975

Problem arose on both existing and new projects. I'm using nvm-for-windows, in case that has any effect. package,json, tsconfig.json and ionic info are at the crosspost. Ionic serve would bring up the homepage of the app, then crash, with this error:
[DEBUG] !!! ERROR ENCOUNTERED !!!
Error: app-scripts serve unexpectedly failed.
[DEBUG] Error: app-scripts serve unexpectedly failed.
at Object. (C:\Users\Aaron\IonicDevelop\ActionSearch\node_modules@ionic\cli-plugin-ionic-angular\dist\serve.js:50:19)
at Generator.next ()
at fulfilled (C:\Users\Aaron\IonicDevelop\ActionSearch\node_modules@ionic\cli-plugin-ionic-angular\dist\serve.js:4:58)

Thanks very much.

tnovau · 2017-05-10T17:57:06Z

I had the same issue, please i need a solution.

ionic info

global packages:

@ionic/cli-utils : 1.0.0
Cordova CLI      : 7.0.0
Ionic CLI        : 3.0.0

local packages:

@ionic/app-scripts              : 1.3.7
@ionic/cli-plugin-cordova       : 1.0.0
@ionic/cli-plugin-ionic-angular : 1.0.0
Ionic Framework                 : ionic-angular 3.2.0

System:

Node       : v7.10.0
OS         : Windows 10
Xcode      : not installed
ios-deploy : not installed
ios-sim    : not installed

Error: app-scripts serve unexpectedly failed.

[DEBUG] !!! ERROR ENCOUNTERED !!!
Error: app-scripts serve unexpectedly failed.
[DEBUG] Error: app-scripts serve unexpectedly failed.
at Object. (C:\Users\tnovau\client\node_modules@ionic\cli-plugin-ionic-angular\dist\serve.js:50:19)
at Generator.next ()
at fulfilled (C:\Users\tnovau\client\node_modules@ionic\cli-plugin-ionic-angular\dist\serve.js:4:58)

imhoffd · 2017-05-10T18:13:00Z

@Aaron-Sterling @tnovau Does this happen with app-scripts 1.3.6?

tnovau · 2017-05-10T18:25:26Z

1.3.7 is the version i have.

imhoffd · 2017-05-10T18:26:40Z

Can you try with 1.3.6?

npm install --save-dev @ionic/app-scripts@1.3.6

tnovau · 2017-05-10T18:32:35Z

I run npm instal --save-dev @ionic/app-scripts@1.3.6,and then when i run ionic serve, I get this message after [15:29:50] dev server running: http://localhost:8100/:

[DEBUG] !!! ERROR ENCOUNTERED !!!
Error: app-scripts serve unexpectedly failed.
[DEBUG] Error: app-scripts serve unexpectedly failed.
at Object. (C:\Users\tnovau\Documents\proyectos\ionic3project\ADX\client\node_modules@ionic\cli-plugin-ionic-angular\dist\serve.js:50:19)
at Generator.next ()
at fulfilled (C:\Users\tnovau\Documents\proyectos\ionic3project\ADX\client\node_modules@ionic\cli-plugin-ionic-angular\dist\serve.js:4:58)

Aaron-Sterling · 2017-05-10T23:48:58Z

@dwieeb I created a new project (blank), put in my source code folder from my main project, and started adding libraries until I encountered the error. I hit the error at the same point with both 1.3.6 and 1.3.7. Libraries in order of addition were:

npm install @angular/animations
npm install @ngrx/core @ngrx/store --save
ionic cordova plugin add cordova-plugin-inappbrowser@latest
npm install --save @ionic-native/in-app-browser
ionic cordova plugin add call-number
npm install --save @ionic-native/call-number
npm install angularfire2 firebase --save
npm install immutable --save

After installing immutable, I got the error. Up until that point, I had run ionic serve after every install, and it was fine, in both 1.3.6 and 1.3.7.

quentinchap · 2017-05-11T04:46:35Z

I made the same action than @Aaron-Sterling and on my side i had an error after this installation of angular/animation

aditya27dev · 2017-05-11T05:12:34Z

I had this issue when i executed command: ionic cordova run android --livereload -c -s. If you are doing the same, just try to run ionic cordova run platform.

I hope this will solve your issue,

JulioCesarCeron · 2017-05-15T12:47:37Z

I had the same error message

Error: app-scripts serve unexpectedly failed.

when i executed ionic serve

so i tried to run npm install -g ionic, and the problem is solved.

imhoffd · 2017-05-15T22:19:20Z

@Aaron-Sterling @tnovau @JulioCesarCeron I still haven't been able to reproduce this, but I am launching the next version of the CLI with the debugging information you can see in the commit above ^

Hopefully this will shed some light on this issue.

NicolasBehra · 2017-05-16T13:36:07Z

I have no longer this error in sudo:

sudo ionic serve

realfreebird · 2017-05-16T15:31:32Z

Here is a way to reproduce the bug:
https://github.com/realfreebird/reproduce-ionic-cli-bug-2247

steps to reproduce:

add to package.json

"config": {
    "ionic_copy": "./config/copy.config.js"
  },

copy node_modules@ionic\app-scripts\config\copy.config.js to .\config\
edit .\config\copy.config.js, add the following lines

module.exports = {
...
reproduce_ionic_cli_bug_2247: {
    src: ['{{ROOT}}/node_modules/non_exiting_file.txt'],
    dest: '{{BUILD}}'
  }
...
}

imhoffd · 2017-05-16T16:42:15Z

@realfreebird Thanks for being a champ and making that repo 👍 Unfortunately I'm still unable to reproduce. Are you on Windows as well? Does an error occur if you try npm run ionic:serve in that repo?

realfreebird · 2017-05-16T16:59:51Z

@dwieeb I get this error with ionic serve.
npm run ionic:serve works fine.

Here is my configuration:

ionic info

global packages:

    @ionic/cli-utils : 1.0.0
    Cordova CLI      : 7.0.1
    Ionic CLI        : 3.0.0

local packages:

    @ionic/app-scripts              : 1.3.7
    @ionic/cli-plugin-cordova       : 1.0.0
    @ionic/cli-plugin-ionic-angular : 1.0.0
    Ionic Framework                 : ionic-angular 3.2.1

System:

    Node       : v6.10.1
    OS         : Windows 7
    Xcode      : not installed
    ios-deploy : not installed
    ios-sim    : not installed

imhoffd · 2017-05-16T17:58:31Z

@realfreebird Okay. Would you mind trying this with the alpha CLI? npm i -g ionic@canary

paulonbastos · 2017-05-16T18:36:08Z

Worked around this problem by adding an empty file to src/service-worker.js.

it seems that (the below code is started from line 53 of @Ionic\app-scripts\dist\serve.js) in the function serve is not return the object config when a non fatal error occurs, such as not find a file in the watch list.

`
.then(function () {

    bonjour_1.createBonjourService(config);

    onReady(config, context);          // <---- Note1 : Returning the config object

    return config;

}, function (err) {

    throw err;

})

    .catch(function (err) {

    if (err && err.isFatal) {

        throw err;

    }

    else {

        onReady(config, context);

       // Note 2 <---- Not returning the config as in note 1

    }
});

`

I hacked the server.js to write to the console (sorry still learning the in and outs of this platform, possible a better way to do this.)
`
P:\nau21\ws1\git\fp-app>ionic serve

Starting app-scripts server: --port 8100 --livereload-port 35729 --address 0.0.0.0 - Ctrl+C to cancel

[19:26:30] watch started ...

.....

[19:26:48] lint finished in 605 ms
errError: A watch configured to watch the following paths failed to start. It likely that a file referenced does not exist: P:\nau21\ws1\git\fp-app\src\assets**, P:\nau21\ws1\git\fp-app\src\index.ht
ml, P:\nau21\ws1\git\fp-app\src\manifest.json, P:\nau21\ws1\git\fp-app\src\service-worker.js, P:\nau21\ws1\git\fp-app\node_modules\ionicons\dist\fonts**, P:\nau21\ws1\git\fp-app\node_modules\ionic-angular\fonts***, P:\nau21\ws1\git\fp-app\node_modules\ionic-angular\polyfills\polyfills.js,P:\nau21\ws1\git\fp-app\node_modules\sw-toolbox\sw-toolbox.js

[19:26:51] dev server running: http://localhost:8100/
`

For my ionic info
global packages:

@ionic/cli-utils : 1.0.0
Cordova CLI      : 7.0.1
Ionic CLI        : 3.0.0

local packages:

@ionic/app-scripts              : 1.3.7
@ionic/cli-plugin-cordova       : 1.0.0
@ionic/cli-plugin-ionic-angular : 1.0.0
Ionic Framework                 : ionic-angular 3.2.0

System:

Node       : v6.10.0
OS         : Windows 10
Xcode      : not installed
ios-deploy : not installed
ios-sim    : not installed

Hope this helps.

imhoffd · 2017-05-16T19:22:59Z

@paulonbastos I think that's the exact problem. We'll see if it's still an issue when the next version of app-scripts is released. Thanks for diving deep, very helpful.

thornch · 2017-05-23T11:08:23Z

Possible solution: npm install --save sw-toolbox

The plugin @ ionic/cli-plugin-ionic-angular @ 1.0.0-rc.2 requires @ ionic/app-scripts
Console-Message: npm WARN @ ionic/app-scripts @ 1.3.7 requires a peer of sw-toolbox @ * but none was i
nstalled.

I've got the same problem for "ionic serve" - after installing the missing package it works as expected.

giovannipds · 2017-07-04T14:27:50Z

@thornch sw-toolbox didn't solve to me.

@dwieeb neither did ionic@canary.

npm run ionic:serve runs ok.

ionic info:

global packages:

    @ionic/cli-utils : 1.4.0
    Ionic CLI        : 3.4.0

local packages:

    @ionic/app-scripts              : 1.0.0
    @ionic/cli-plugin-ionic-angular : 1.3.1
    Ionic Framework                 : ionic-angular 2.0.0

System:

    Node       : v6.11.0
    OS         : Windows 10
    Xcode      : not installed
    ios-deploy : not installed
    ios-sim    : not installed
    npm        : 3.10.10

Tried npm update and didn't solve as well.

After seeing some UNMET PEER DEPENDENCY @ionic/app-scripts@1.3.6 invalid 'cause of sw-toolbox, tried installing @ionic/app-scripts@1.3.6 and running ionic serve later worked.

--> npm i @ionic/app-scripts@^.1.3.7 --save-dev solves. <--

imhoffd changed the title ~~had to revert to 2.2.3 because ionic serve kept failing~~ Error: app-scripts serve unexpectedly failed May 10, 2017

imhoffd mentioned this issue May 10, 2017

Error: app-scripts serve unexpectedly failed. #2251

Closed

imhoffd assigned jthoms1 May 11, 2017

imhoffd added the bug label May 11, 2017

imhoffd added this to the CLI 3.0.1 milestone May 11, 2017

imhoffd modified the milestones: CLI Future, CLI 3.1.0 May 15, 2017

imhoffd added a commit that referenced this issue May 15, 2017

chore(): more debugging information for #2247

6335afd

imhoffd closed this as completed in ionic-team/ionic-app-scripts@e5a4134 May 16, 2017

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Error: app-scripts serve unexpectedly failed #2247

Error: app-scripts serve unexpectedly failed #2247

Aaron-Sterling commented May 10, 2017

tnovau commented May 10, 2017

imhoffd commented May 10, 2017

tnovau commented May 10, 2017

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giovannipds commented Jul 4, 2017

Error: app-scripts serve unexpectedly failed #2247

Error: app-scripts serve unexpectedly failed #2247

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