Generation fails after upgrade to 15.1.2

[Garbee]

Command

generate

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

15.1.1

Description

Upon generating a new component, an exception is thrown from the CLI tool. I traced this to the code touched from: #24542. The app-shell schematic in particular is what was undefined, thus causing the error.

This oddly does not present itself on a freshly made application stack. Only from a stack that was upgraded from 15.0. (Could happen when upgrading from older versions as well.)

For now, I have rolled @angular/cli back by force to 15.1.1 and the problem is resolved since that includes the older version of the devkit.

Minimal Reproduction

1. Have an application on version 15.0
2. Upgrade to 15.1 using ng update on all appropriate dependencies (or just the CLI)
3. Attempt to run ng g c test

Exception or Error

An unhandled exception occurred: Cannot destructure property 'aliases' of 'collection.description.schematics[schematicName]' as it is undefined.

Your Environment

_                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI: 15.1.2
Node: 18.12.1
Package Manager: npm 9.2.0
OS: darwin x64

Angular: 15.1.1
... animations, cdk, common, compiler, compiler-cli, core, forms
... localize, material, platform-browser
... platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1501.2
@angular-devkit/build-angular   15.1.2
@angular-devkit/core            15.1.2
@angular-devkit/schematics      15.1.2
@angular/cli                    15.1.2
@schematics/angular             15.1.2
rxjs                            7.8.0
typescript                      4.9.4

Anything else relevant?

No response

[alan-agius4]

Thanks for opening this issue.

Fortunately this has been already solved via #24575 and will be part of 15.1.3

[ZumelzuR]

Thanks for opening this issue.

Fortunately this has been already solved via #24575 and will be part of 15.1.3

what we can do meanwhile this version is released ?

[alan-agius4]

Downgrade to 15.1.1

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