Very slow compilation in beta.11 version

[Yomyer]

Bug Report

Ionic Info
Run ionic info from a terminal/cmd prompt and paste the output below.

Ionic:

   ionic (Ionic CLI)          : 4.1.2 (/usr/local/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.10
   @angular-devkit/core       : 0.7.5
   @angular-devkit/schematics : 0.7.5
   @angular/cli               : 6.1.2
   @ionic/ng-toolkit          : 1.0.7
   @ionic/schematics-angular  : 1.0.5

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : browser 5.0.4, ios 4.5.4
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.0.5, cordova-plugin-ionic-webview 1.1.1, (and 14 other plugins)

System:

   ios-deploy : 1.9.2
   ios-sim    : 6.1.2
   NodeJS     : v8.11.1 (/usr/local/Cellar/node@8/8.11.1/bin/node)
   npm        : 5.6.0
   OS         : macOS High Sierra
   Xcode      : Xcode 9.4.1 Build version 9F2000

Describe the Bug
It is very slow to compile, with version 7 it went much faster it becomes impossible to debug, as it takes about 30 seconds to refresh.

Steps to Reproduce
Steps to reproduce the behavior:

1. Use this command ionic cordova run browser -l or ionic serve
2. It is very slow to compile, with version 7 it went much faster it becomes impossible to debug, as it takes about 30 seconds to refresh.

[PhilippeSchraepen]

I'm also having this problem. I've rolled the versions back one-by-one and it seems that the problem was introduced in 4.0.0-beta.9

[mhartington]

So 2 things:

1. Is there a sample project to inspect? Using a starter project from the CLI, Im seeing about 5second rebuild times, which is pretty average across projects.

[ng] ℹ ｢wdm｣: Compiled successfully.
[ng] ℹ ｢wdm｣: Compiling...
[ng] Date: 2018-09-18T14:34:06.072Z - Hash: 5efda5e90e64deebd59c - Time: 5642ms
[ng] 174 unchanged chunks
[ng] ℹ ｢wdm｣: Compiled successfully.
[ng] ℹ ｢wdm｣: Compiling...
[ng] Date: 2018-09-18T14:34:20.177Z - Hash: 5efda5e90e64deebd59c - Time: 5627ms
[ng] 174 unchanged chunks
[ng] ℹ ｢wdm｣: Compiled successfully.

2. Since this is which compilation, it's more on the Angular CLI side of things, since it is responsible for all the building in V4 project.

[PhilippeSchraepen]

So 2 things:

1. Is there a sample project to inspect? Using a starter project from the CLI, Im seeing about 5second rebuild times, which is pretty average across projects.

[ng] ℹ ｢wdm｣: Compiled successfully.
[ng] ℹ ｢wdm｣: Compiling...
[ng] Date: 2018-09-18T14:34:06.072Z - Hash: 5efda5e90e64deebd59c - Time: 5642ms
[ng] 174 unchanged chunks
[ng] ℹ ｢wdm｣: Compiled successfully.
[ng] ℹ ｢wdm｣: Compiling...
[ng] Date: 2018-09-18T14:34:20.177Z - Hash: 5efda5e90e64deebd59c - Time: 5627ms
[ng] 174 unchanged chunks
[ng] ℹ ｢wdm｣: Compiled successfully.

1. Since this is which compilation, it's more on the Angular CLI side of things, since it is responsible for all the building in V4 project.

I've upgraded an existing (private) project, so maybe the problem doens't occur when generating a new project. I've also upgraded ionic-cli and all other dependencies, without any result.

[mhartington]

Is there a sample project to inspect?

Still would like a project to inspect and debug. As compilation is still done with the Angular-CLI, I dont think there's anything on our end that is responsible for compilation times, but I would like to test a project. Otherwise, I'll need to close this issue.

[godenji]

What solved it for me was upgrading to Node 10.10.0 and NPM 6.4.1, along with removing existing node deps and reinstalling.

Previously beta 11 was horrendously slow, but after applying above steps rebuild times are quite fast (3-4 seconds), faster than ever in fact.

[PhilippeSchraepen]

What solved it for me was upgrading to Node 10.10.0 and NPM 6.4.1, along with removing existing node deps and reinstalling.

Previously beta 11 was horrendously slow, but after applying above steps rebuild times are quite fast (3-4 seconds), faster than ever in fact.

This solved it for me too!

[netsesame2]

Update to Node 10 is right. Compiling time from 79s to 7s.

[ionitron-bot]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.