在Angular6中使用国内镜像也无法安装module的一种情况解决（以angular-in-memory-web-api为例）

首先说环境，我是 npm 5.6.0，Angular6，windows7 64位

$ npm -version
5.6.0

 

问题背景：学习Angular有一段时间了，现在想系统的根据官网学习一遍，但在最后一个课程出了问题

官方课程：https://www.angular.cn/tutorial/toh-pt6

问题描述：

在 app.module.ts 添加module失败：

import { HttpClientInMemoryWebApiModule } from 'angular-in-memory-web-api';

运行直接报错

$ ng serve --open --port 4205
** Angular Live Development Server is listening on localhost:4205, open your browser on http://localhost:4205/ **

Date: 2019-05-21T06:38:50.789Z
Hash: 59cc300197aa21e668a0
Time: 5891ms
chunk {main} main.js, main.js.map (main) 2.03 kB [initial] [rendered]
chunk {polyfills} polyfills.js, polyfills.js.map (polyfills) 93.6 kB [initial] [rendered]
chunk {runtime} runtime.js, runtime.js.map (runtime) 6.08 kB [entry] [rendered]
chunk {styles} styles.js, styles.js.map (styles) 19.4 kB [initial] [rendered]
chunk {vendor} vendor.js, vendor.js.map (vendor) 327 kB [initial] [rendered]

ERROR in src/app/app.module.ts(4,48): error TS2307: Cannot find module 'angular-in-memory-web-api'.

i ｢wdm｣: Failed to compile.

解决过程

1、项目中安装失败：

$ npm install angular-in-memory-web-api --save --proxy=http://proxysh.zte.com.cn --registry https://registry.npm.taobao.org
npm ERR! Error while executing:
npm ERR! C:\Program Files\Git\mingw64\bin\git.EXE ls-remote -h -t ssh://[e-mail]/brandonroberts/in-memory-web-api-bazel.git
 

2、全局安装正常：

$ npm install -g angular-in-memory-web-api --registry https://registry.npm.taobao.org

+ angular-in-memory-web-api@0.8.0
added 1 package in 7.148s

但即使这样，在项目中引用仍然失败

3、查看项目中的配置 package.json，果然，该设置明显不一样：

  "keywords": [],
  "author": "",
  "license": "MIT",
  "dependencies": {
    "@angular/animations": "^7.1.0",
    "@angular/common": "^7.1.0",
    "@angular/compiler": "^7.1.0",
    "@angular/core": "^7.1.0",
    "@angular/forms": "^7.1.0",
    "@angular/http": "^7.1.0",
    "@angular/platform-browser": "^7.1.0",
    "@angular/platform-browser-dynamic": "^7.1.0",
    "@angular/router": "^7.1.0",
    "@angular/upgrade": "^7.1.0",
    "angular-in-memory-web-api": "github:brandonroberts/in-memory-web-api-bazel#50a34d8",  # 这里问题
    "core-js": "^2.5.4",
    "rxjs": "^6.3.0",
    "zone.js": "~0.8.26"
  },

于是修改为

  "keywords": [],
  "author": "",
  "license": "MIT",
  "dependencies": {
    "@angular/animations": "^7.1.0",
    "@angular/common": "^7.1.0",
    "@angular/compiler": "^7.1.0",
    "@angular/core": "^7.1.0",
    "@angular/forms": "^7.1.0",
    "@angular/http": "^7.1.0",
    "@angular/platform-browser": "^7.1.0",
    "@angular/platform-browser-dynamic": "^7.1.0",
    "@angular/router": "^7.1.0",
    "@angular/upgrade": "^7.1.0",
    "angular-in-memory-web-api": "^0.6.1",    # 修改后
    "core-js": "^2.5.4",
    "rxjs": "^6.3.0",
    "zone.js": "~0.8.26"
  },

注意json文件没有注释

4、重新执行安装成功：

$ npm install angular-in-memory-web-api --save --registry https://registry.npm.taobao.org
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN angular-in-memory-web-api@0.6.1 requires a peer of @angular/common@^6.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN angular-in-memory-web-api@0.6.1 requires a peer of @angular/core@^6.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN angular-in-memory-web-api@0.6.1 requires a peer of @angular/http@^6.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN angular-in-memory-web-api@0.6.1 requires a peer of rxjs@^6.0.0 but none is installed. You must install peer dependencies yourself.

+ angular-in-memory-web-api@0.6.1
added 1 package in 2.038s
项目中也能正常使用~

 

希望对大家有帮助，感谢观看