Cannot determine project or target for Architect command Angular

Question

C:\Users\muhiuddin.TOWERTECH\test\testapp>ng build --target=production

or

C:\Users\muhiuddin.TOWERTECH\test\testapp>ng run

When I run a new project or build it give me "Cannot determine project or target for Architect command" error. I am new to Angular. Kindly give me easy solution.

Angular CLI: 6.0.8
Node: 9.3.0
OS: win32 x64
Angular: 6.0.7

>Cannot determine project or target for Architect command.
Error: Cannot determine project or target for Architect command.
    at MergeMapSubscriber._loadWorkspaceAndArchitect.pipe.operators_1.concatMap [as project] (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\@angular\cli\models\architect-command.js:62:27)
    at MergeMapSubscriber._tryNext (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\operators\mergeMap.js:65:27)
    at MergeMapSubscriber._next (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\operators\mergeMap.js:55:18)
    at MergeMapSubscriber.Subscriber.next (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\Subscriber.js:64:18)
    at TapSubscriber._next (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\operators\tap.js:62:26)
    at TapSubscriber.Subscriber.next (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\Subscriber.js:64:18)
    at MergeMapSubscriber.notifyNext (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\operators\mergeMap.js:84:26)
    at InnerSubscriber._next (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\InnerSubscriber.js:25:21)
    at InnerSubscriber.Subscriber.next (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\Subscriber.js:64:18)
    at MapSubscriber._next (C:\Users\muhiuddin.TOWERTECH\test\testapp\node_modules\rxjs\internal\operators\map.js:52:26)

Answer 1

Use:

ng serve

See angular CLI docs - https://github.com/angular/angular-cli/wiki

Answer 2

Double check command line syntax. This error can show if ng used instead of npm like when using package.json shortcut scripts.

npm run debug   (Good)
ng run debug    (Bad)

Answer 3

had this after upgrading to angular 6.

appears like the CLI command has changed to :

ng build --configuration <environment-name>

the migration from 5 to 6 also created a new "angular.json" file which now contains all the different configurations and their names.

Answer 4

Check out the cli documentation.

I believe you need to specify your project's name in the build command.

ng build [project]

Also you can do the production build with the following command.

ng build [project] --prod

Answer 5

Update angular.json file. Add defaultProject property (value will be the name of the desired project)