Cannot determine project or target for Architect c

问题:

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)

回答1:

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.

回答2:

Use:

ng serve

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

回答3:

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

回答4:

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)

回答5:

In Angular version 6, the build command is changed. Changing "build": "ng build --target=production --aot=true" to "build": "ng build --prod --aot" in package.json worked for me.