ng generate service: Project "undefined" does not exist.

[greenpau]

🐞 Bug report

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• update
• lint
• extract-i18n
• run
• config
• help
• version
• doc

Is this a regression?

No.

Description

Failed generating Angular service.

I am working on creating a standalone service (later will publish to npm). My thinking is I need to generate a workspace and after that, I generate a service. Perhaps, I am missing a step.

🔬 Minimal Reproduction

First, cloned empty project and tested the generation of new Angular workspace.

mkdir ngx-authp-service
cd ngx-authp-service
ng new ngx-authp-service --create-application=false --commit=false --routing=false --style=scss --directory=./ --dry-run

The dry run has the following output:

CREATE README.md (1061 bytes)
CREATE .editorconfig (274 bytes)
CREATE .gitignore (620 bytes)
CREATE angular.json (139 bytes)
CREATE package.json (1033 bytes)
CREATE tsconfig.json (863 bytes)
CREATE .vscode/extensions.json (130 bytes)
CREATE .vscode/launch.json (474 bytes)
CREATE .vscode/tasks.json (938 bytes)

Next, created the workspace:

ng new ngx-authp-service --create-application=false --commit=false --routing=false --style=scss --directory=./ --skip-install=true

The state of the repo prior to trying to generate the service: greenpau/ngx-authp-service@911cd3a

After that, attempted to create ngx-authp-service service:

ng generate service ngx-authp-service

🔥 Exception or Error

$ ng generate service ngx-authp-service
Project "undefined" does not exist.

🌍 Your Environment

Angular CLI: 13.1.0
Node: 14.17.6
Package Manager: npm 8.1.2
OS: linux x64

Angular: 
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.1301.0 (cli-only)
@angular-devkit/core         13.1.0 (cli-only)
@angular-devkit/schematics   13.1.0 (cli-only)
@angular/cli                 13.1.0 (cli-only)
@schematics/angular          13.1.0 (cli-only)
rxjs                         6.6.7 (cli-only)
typescript                   4.4.3 (cli-only)

Anything else relevant?

No.

[greenpau]

After I added the project manually,

diff --git a/angular.json b/angular.json
index 0763165..93ccf17 100644
--- a/angular.json
+++ b/angular.json
@@ -3,5 +3,12 @@
   "version": 1,
   "newProjectRoot": "projects",
   "projects": {
-  }
+      "ngx-authp-service": {
+          "projectType": "library",
+          "root": "projects/ngx-authp-service",
+          "sourceRoot": "projects/ngx-authp-service/src",
+          "prefix": "lib"
+      }
+  },
+  "defaultProject": "ngx-authp-service"
 }

The service generation worked.

$ ng generate service ngx-authp-service
CREATE projects/ngx-authp-service/src/lib/ngx-authp-service.service.spec.ts (404 bytes)
CREATE projects/ngx-authp-service/src/lib/ngx-authp-service.service.ts (144 bytes)

[MurhafSousli]

Hi @greenpau 👋

The undefined error you got was caused by the missing property defaultProject in angular.json file.

If you've used the command ng g library ngx-authp-service after you created the empty workspace, the CLI would have set it for you automatically.

[alan-agius4]

The is working as intended as project need to be declared and configured in angular.json.

As mentioned above, a library project should be created using the ng generate library command.

See https://angular.io/guide/creating-libraries for more information.

[greenpau]

@MurhafSousli , @alan-agius4 , thank you for looking into this! 👍

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