angular-schematics error : Collection "@igniteui/angular-schematics" cannot be resolved

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Michael Seidel posted over 3 years ago

Installed : C:\_ng\new_ig1>npm i -g @igniteui/angular-schematics

then run command below, and got the error, any advice why?

ng new igGrid2sch --collection="@igniteui/angular-schematics" --template=side-nav

Log:

[error] Error: Collection "@igniteui/angular-schematics" cannot be resolved.
at SchematicEngineHost.resolve (C:\node_modules\@angular-devkit\schematics\tools\node-module-engine-host.js:75:19)
at SchematicEngineHost._resolveCollectionPath (C:\node_modules\@angular-devkit\schematics\tools\node-module-engine-host.js:80:37)
at SchematicEngineHost.createCollectionDescription (C:\node_modules\@angular-devkit\schematics\tools\file-system-engine-host-base.js:118:27)
at SchematicEngine._createCollectionDescription (C:\node_modules\@angular-devkit\schematics\src\engine\engine.js:162:40)
at SchematicEngine.createCollection (C:\node_modules\@angular-devkit\schematics\src\engine\engine.js:155:43)
at NewCommand.getCollection (C:\node_modules\@angular\cli\models\schematic-command.js:143:35)
at NewCommand.initialize (C:\node_modules\@angular\cli\models\schematic-command.js:62:37)
at async NewCommand.validateAndRun (C:\node_modules\@angular\cli\models\command.js:121:22)
at async Object.runCommand (C:\node_modules\@angular\cli\models\command-runner.js:224:24)
at async default_1 (C:\node_modules\@angular\cli\lib\cli\index.js:70:31)

Also what would be the reason to use angular-schematics vs Ignite UI Cli , they seems like do the same.. I did not have problem to create new pj with Ignite UI CLI

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Offline Teodosia Hristodorova posted over 3 years ago in reply to Michael Seidel +1 verified
Hello, I'm assuming this error occurs when 'npm i' is called and as it is pointed out into the error log the problem is jasmine-core and karma-jasmine...view reply »
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Offline Michael Seidel posted over 3 years ago in reply to Teodosia Hristodorova +1 verified
Thanks Teodosia. All worked out.

8920

Offline Michael Seidel posted over 3 years ago in reply to Teodosia Hristodorova

Let's try again to see what is the problem.. I did the following, got the same result :

C:\_ng>npm i -g @igniteui/angular-schematics

> @igniteui/angular-schematics@12.0.803 preuninstall C:\Users\gkheysin\AppData\Roaming\npm\node_modules\@igniteui\angular-schematics
> node ./scripts/uninstall.js

> @igniteui/angular-schematics@12.0.803 postinstall C:\Users\gkheysin\AppData\Roaming\npm\node_modules\@igniteui\angular-schematics
> node ./scripts/install.js

+ @igniteui/angular-schematics@12.0.803
updated 1 package in 20.252s

C:\_ng>cd new_ig1

C:\_ng\new_ig1>ng new --collection="@igniteui/angular-schematics"
An unhandled exception occurred: Collection "@igniteui/angular-schematics" cannot be resolved.
See "C:\Users\gkheysin\AppData\Local\Temp\1\ng-LsQndG\angular-errors.log" for further details.

then I've run

C:\_ng\new_ig1>npm config get prefix
C:\Users\gkheysin\AppData\Roaming\npm

and check the contents, there is no \@angular-devkit.

It seems that I do trying to install @igniteui/angular-schematics globally.. do you see anything wrong with the sequence or what else could be a potential source of the problem?

I also did search through the whole c: drive for node-module-engine-host.js

It is located in the following global folder for npm :

C:\Users\gkheysin\AppData\Roaming\npm\node_modules\@igniteui\angular-schematics\node_modules\@angular-devkit\schematics\tools

Could it be that folder structure is the reason for error ?
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Offline Teodosia Hristodorova posted over 3 years ago in reply to Michael Seidel

Hello,

After looking at the provided log, I could say that it is thrown at C:\node_modules\@angular-devkit\schematics\tools\node-module-engine-host.js. In case C:\ is not your global npm folder, which could be checked by running, the 'npm config get prefix' commandthis could be a possible cause for issues. If this is not the case, what I could say is that once the @igniteui/angular-schematics package is installed globally the 'ng new’, which is part of the Angular framework, should be able to find it and any issues related to it should be addressed to Angular support.

Let me know if I may be of any further assistance.

Sincerely,

Teodosia Hristodorova

Associate Software Developer
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Offline Michael Seidel posted over 3 years ago in reply to Teodosia Hristodorova

Still, what could be potential reasons for the angular schematics giving the error while it was installed.

If there are ways to check the settings.. the log file not very helpful.

[error] Error: Collection "@igniteui/angular-schematics" cannot be resolved
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Offline Teodosia Hristodorova posted over 3 years ago

Hello,

I have been looking into your question and tested the provided command. On my side, everything seems to work as expected without any exceptions. A discussion that you might consider helpful could be found in our GitHub repository here.

Additionally, since you are able to successfully create a new project using CLI this could be used as an alternative.

Regarding your second question I could suggest looking at this topic where is mentioned that Ignite UI CLI is a stand-alone command-line tool for creating and scaffolding applications for a variety of frameworks.

On the other hand, Ignite UI for Angular Schematics are part of the same project, available as a collection that can be used with the Angular CLI. They offer similar core Ignite UI CLI functionality, but one that`s integrated with the Schematics workflow and focused specifically on this product. The schematics collection is added to your project when you install Ignite UI for Angular.

Both versions of the tooling allow for generating different projects, component and scenario views (templates).

In addition, a useful guide could be found here.

Let me know if I may be of any further assistance.

Sincerely,
Teodosia Hristodorova
Associate Software Developer
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