If “ng-template” is a web component, add “CUSTOM_ELEMENTS_SCHEMA” to this component to suppress this message. ("[ERROR ->] <ng-template>

Question

zone.js@0.6.25 ? main = browser: 355 Unhandled Promise rejection: template parsing errors: "ng-template" is not a known element: 1. If "ng-template" is an Angular component, then make sure it is part of this module. 2. If "ng-template" is a web component, add "CUSTOM_ELEMENTS_SCHEMA" to the "@ NgModule.schemas" of this component to suppress this message. ("[ERROR →]; Task: Promise.then; Value: Error: Template parsing errors: 'ng-template' is not a known element:

I applied this FIX in my App.module.ts application:

import { NgModule, CUSTOM_ELEMENTS_SCHEMA ,NO_ERRORS_SCHEMA}  from '@angular/core';


@NgModule({
    imports: [
        BrowserModule,
        FormsModule,
        ReactiveFormsModule,
        HttpModule,
        JsonpModule,
        CKEditorModule,
        Ng2DatetimePickerModule,
        Ng2DragDropModule,
        DragulaModule,
        ModalModule.forRoot(),
        MaterialModule.forRoot(),
        BootstrapModalModule,
        RouterModule.forRoot(appRoutes, {useHash: true})
    ],
    declarations: [something
    ],
    providers: [],
    bootstrap: [AppComponent],
    schemas: [ CUSTOM_ELEMENTS_SCHEMA, NO_ERRORS_SCHEMA ]
})

PACKAGES.JSON

"dependencies": {
    "@angular/common": "2.2.1",
    "@angular/compiler": "2.2.1",
    "@angular/core": "2.2.1",
    "@angular/forms": "2.2.1",
    "@angular/http": "2.2.1",
    "@angular/platform-browser": "2.2.1",
    "@angular/platform-browser-dynamic": "2.2.1",
    "@angular/router": "3.2.1",
    "bootstrap": "^3.3.7",
    "core-js": "^2.4.1",
    "jquery": "~3.1.1",
    "rxjs": "5.0.0-beta.12",
    "ts-helpers": "^1.1.1",
    "zone.js": "^0.6.23"
  },



"devDependencies": {
    "@angular/compiler-cli": "2.2.1",
    "@types/jasmine": "2.5.38",
    "@types/node": "^6.0.42",
    "angular-cli": "1.0.0-beta.21",
    "codelyzer": "~1.0.0-beta.3",
    "jasmine-core": "2.5.2",
    "jasmine-spec-reporter": "2.5.0",
    "karma": "1.2.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-remap-istanbul": "^0.2.1",
    "protractor": "4.0.9",
    "ts-node": "1.2.1",
    "tslint": "3.13.0",
    "typescript": "~2.0.3",
    "webdriver-manager": "10.2.5"
  }

Even after that it does not work.

Answer 1

• Update angular-cli: https://github.com/angular/angular-cli/wiki/stories-1.0-update
• Update typescript and optionally your packages @angular. Your packages are pretty behind, most importantly angular-cli, so be prepared.
  • My main packages:

dependecies: {
  "@angular/animations": "^4.0.2",
  "@angular/common": "^2.3.1",
  "@angular/compiler": "^2.3.1",
  "@angular/compiler-cli": "^2.4.10",
  "@angular/core": "^2.3.1",
  "@angular/forms": "^2.3.1",
  "@angular/http": "^2.3.1",
  "@angular/material": "^2.0.0-beta.3",
  "@angular/platform-browser": "^2.3.1",
  "@angular/platform-browser-dynamic": "^2.3.1",
  "@angular/platform-server": "^4.0.0",
  "@angular/router": "^3.3.1"
}
devDependencies: {
  "@angular/cli": "^1.0.0",
  "typescript": "^2.2.2"
}

Run code

3. npm install @angular/material && npm install hammerjs —-save
   • add /node_modules/hammerjs/hammer.jstoangular-cli.json
4. MaterialModuledeprecated https://github.com/angular/material2/releases
   • import individual modules into yours app.moduleand export accordingly, and then just add tags to html

Answer 2

<ng-template> Angular4.

<template>, <ng-container>

.

• https://github.com/angular/angular/blob/master/CHANGELOG.md#installing-rc1
• https://github.com/angular/angular/issues/15860