[angular-cli] How to create a new component in Angular 4 using CLI

In angular 2 I use

ng g c componentname

But It is not supported in Angular 4, so I created it manually, but it shows error that it is not a module.

go to your project directory in CMD, and run the following commands. You can use the visual studio code terminal also.

ng generate component "component_name"

OR

ng g c "component_name"

a new folder with "component_name" will be created

component_name/component_name.component.html component_name/component_name.component.spec.ts component_name/component_name.component.ts component_name/component_name.component.css

new component will be Automatically added module.

you can avoid creating spec file by following command

ng g c "component_name" --nospec

ng g c COMPONENTNAME

this command use for generating component using terminal this i use in angular2.

g for generate c for component

ng g c --dry-run so you can see what you are about to do before you actually do it will save some frustration. Just shows you what it is going to do without actually doing it.

There are mainly two ways to generate new component in Angular, using ng g c <component_name> , another way is that using ng generate component <component_name>. using one of these commands new component can be generated.

Make sure you are in your project directory in the CMD line

    ng g component componentName

1) first go to your Project Directory

2) then Run below Command in terminal.

ng generate component componentname

OR

ng g component componentname

3) after that you will see output like this,

create src/app/test/componentname.component.css (0 bytes)
create src/app/test/componentname.component.html (23 bytes)
create src/app/test/componentname.component.spec.ts (614 bytes)
create src/app/test/componentname.component.ts (261 bytes)
update src/app/app.module.ts (1087 bytes)

ng generate component component_name was not working in my case because instead of using 'app' as project folder name, I renamed it to something else. I again changed it to app. Now, it is working fine

For creating component under certain folder

ng g c employee/create-employee --skipTests=false --flat=true

This line will create a folder name 'employee', underneath that it creates a 'create-employee' component.

without creating any folder

ng g c create-employee --skipTests=false --flat=true

ng g component componentname

It generates the component and adds the component to module declarations.

when creating component manually , you should add the component in declaration of the module like this :

@NgModule({
  imports: [
    yourCommaSeparatedModules
    ],
  declarations: [
    yourCommaSeparatedComponents
  ]
})
export class yourModule { }

You should be in the src/app folder of your angular-cli project on command line. For example:

D:\angular2-cli\first-app\src\app> ng generate component test

Only then it will generate your component.

Step1:

Get into Project Directory!(cd into created app).

Step2:

Type in the following command and run!

ng generate component [componentname]

• Add the name of component you want to generate in the [componentname] section.

OR

ng generate c [componentname]

• Add name of component you want to generate in the [componentname] section.

Both will work

For reference checkout this section of Angular Documentation!

https://angular.io/tutorial/toh-pt1

For reference also checkout the link to Angular Cli on github!

https://github.com/angular/angular-cli/wiki/generate-component

ng g c componentname

It will create the following 4 files:

1. componentname.css
2. componentname.html
3. componentname.spec.ts
4. componentname.ts

Go to Project location in Specified Folder

C:\Angular6\sample>

Here you can type the command

C:\Angular6\sample>ng g c users

Here g means generate , c means component ,users is the component name

it will generate the 4 files

users.component.html,
users.component.spec.ts,
users.component.ts,
users.component.css

go to your angular project folder and open the command promt an type "ng g component header" where header is the new component that you want to create.As default the header component will be created inside the app component.You can create components inside a component .For example if you want to create a component inside he header that we made above then type"ng g component header/menu". This will create a menu component inside the header component

If you want to create new component without .spec file, you can use

ng g c component-name --spec false

You can find these options using ng g c --help

In Angular4 this will work the same. If you get an error I think your problem is somewhere else.

In command prompt type

ng generate component YOURCOMPONENTNAME

There are even shorthands for this: the commands generate can be used as g and component as c:

ng g c YOURCOMPONENTNAME

you can use ng --help, ng g --help or ng g c --help for the docs.

Ofcourse rename YOURCOMPONENTNAME to the name you would like to use.

Docs: angular-cli will add reference to components, directives and pipes automatically in the app.module.ts.

Update: This still functions in Angular version 8.

ng generate component componentName.

It will automatically import the component in module.ts

ng g c COMPONENTNAME should work, if your are getting module not found exception then try these things-

1. Check your project directory.
2. If you are using visual studio code then reload it or reopen your project in it.

cd to your project and run,

> ng generate component "componentname"
ex: ng generate component shopping-cart

OR

> ng g c shopping-cart

(This will create new folder under "app" folder with name "shopping-cart" and create .html,.ts, .css. specs files.)

If you do not want to generate .spec file

> ng g c shopping-cart --skipTests true

If you want to create component in any specific folder under "app"

> ng g c ecommerce/shopping-cart

(you will get folder structure "app/ecommerce/shopping-cart")

Did you update the angular-cli to latest version? or did you try updating node or npm or typescript? this issue comes because of versions like angular/typescript/node. If you are updating the cli, use this link here. https://github.com/angular/angular-cli/wiki/stories-1.0-update

ng g component component name

before you type this commend check you will be in your project directive path

In my case i happen to have another .angular-cli.json file in my src folder. Removing it solved the problem. Hope it helps

angular 4.1.1 angular-cli 1.0.1