ng build引发错误:“试图找到引导程序代码，但找不到."

问题描述

尝试使用ng-build构建我的应用程序时，出现以下错误:

When trying to build my app with ng-build, I get the following error:

.angular-cli.json中指定的主文件非常简单:

My main file as specified in .angular-cli.json is pretty straightforward:

import { NgModule } from '@angular/core';
import { LoginComponent } from './login.component';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'
import { HttpClientModule } from '@angular/common/http';
import { LoginService } from '../login.service'


@NgModule({
    declarations: [
        LoginComponent
    ],
    imports: [
        BrowserModule,
        FormsModule,
        HttpClientModule
    ],
    providers: [LoginService],
    bootstrap: [LoginComponent]
})
export class AppModule { }

platformBrowserDynamic().bootstrapModule(AppModule);

ng --version返回以下内容:

Angular CLI: 1.7.0
Node: 6.11.0
OS: win32 x64
Angular: 5.2.5
... common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic

@angular/cli: 1.7.0
@angular-devkit/build-optimizer: 0.3.1
@angular-devkit/core: 0.3.1
@angular-devkit/schematics: 0.3.1
@ngtools/json-schema: 1.2.0
@ngtools/webpack: 1.10.0
@schematics/angular: 0.3.1
@schematics/package-update: 0.3.1
typescript: 2.7.2
webpack-replace: 1.0.0
webpack-vendor-chunk-plugin: 1.0.0
webpack: 3.11.0

推荐答案

从戴维的答案中得到了一个线索，我尝试了这个并为我工作.

Taking a clue from David's answer, I tried this and worked for me.

第1步:在与main.ts文件相同的文件夹中创建一个名为 AppModule.ts 的新文件.

Step 1:Create a new file named AppModule.ts inside the same folder as you have main.ts file.

第2步:将所有内容从 main.ts 文件移动到 AppModule.ts 文件.

Step 2:Move everything from main.ts file to AppModule.ts file.

第3步:移动之后， main.ts 文件应仅具有以下代码:

Step 3:After the move, main.ts file should ONLY have this code:

import './polyfills';

import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './AppModule';

platformBrowserDynamic().bootstrapModule(AppModule);

第4步:我的 AppModule.ts 文件包含以下代码.根据您的编码，您的AppModule.ts可能具有不同的代码.

Step 4:My AppModule.ts file has this code. Your AppModule.ts may have different code based on what you have coded.

import {HttpClientModule} from '@angular/common/http';
import {NgModule} from '@angular/core';
import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
import {BrowserModule} from '@angular/platform-browser';
import {YOURCustomCode} from './app/YOURCustomCode';

@NgModule({
  imports: [
    BrowserModule,
    BrowserAnimationsModule,
    FormsModule,
    HttpClientModule,
    DemoMaterialModule,
    MatNativeDateModule,
    ReactiveFormsModule,
  ],
  entryComponents: [YOURCustomCode],
  declarations: [YOURCustomCode],
  bootstrap: [YOURCustomCode],
  providers: []
})
export class AppModule {}

第5步:运行命令ng serve，它将立即编译并生成没有错误的引导程序模块错误.

Step 5:Run command ng serve and it compiles and builds with no error bootstrap module error now.

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