ionic教程（1）--配置环境和创建项目

win10

安装开发工具VsCode

安装node.js

（由于使用公司的内网，所以要使用代理，这里的坑比较多！！！）

---

1、通过npm来开发项目

报错：

PS F:\demo1> npm install -g ionic@latest
npm ERR! code ENOTFOUND
npm ERR! errno ENOTFOUND
npm ERR! network request to https://registry.npmjs.org/ionic failed, reason: getaddrinfo ENOTFOUND registry.npmjs.org registry.npmjs.org:443
npm ERR! network This is a problem related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\zhangjun.fnst\AppData\Roaming\npm-cache\_logs\2019-01-07T05_16_43_253Z-debug.log】

看了一下，原来是因为我电脑是用代理来联网的，但npm却没有设置代理

解决方案：

如果您使用代理来访问Web，则还必须配置npm为使用它。使用：

npm config set proxy http://example.com:8080
npm config set https-proxy http://example.com:8080

 

https://stackoverflow.com/questions/39592908/error-getaddrinfo-enotfound-registry-npmjs-org-registry-npmjs-org443

2、换源

 安装cnpm

在命令行中输入  npm install -g cnpm --registry=http://registry.npm.taobao.org  ，然后等待，没报错表示安装成功，如下图：

 

3. 设置全局的npm从国内源加载   npm config set registry https://registry.npm.taobao.org

 

4、安装Ionic ionic

$ cnpm install -g ionic

5、报错：

PS F:\demo1> cnpm install -g ionic
Get /binary-mirror-config/latest from https://registry.npm.taobao.org error: Error: getaddrinfo ENOTFOUND registry.npmjs.com registry.npmjs.com:443
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:26)
Get /bug-versions/latest from https://registry.npm.taobao.org error: Error: getaddrinfo ENOTFOUND registry.npmjs.com registry.npmjs.com:443
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:26)
Error: Cannot find module 'bug-versions/package.json'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
    at Function.Module._load (internal/modules/cjs/loader.js:507:25)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at getRemotePackage (C:\Users\zhangjun.fnst\AppData\Roaming\npm\node_modules\cnpm\node_modules\npminstall\lib\utils.js:457:11)
    at getRemotePackage.throw ()
    at onRejected (C:\Users\zhangjun.fnst\AppData\Roaming\npm\node_modules\cnpm\node_modules\co\index.js:81:24)
    at process._tickCallback (internal/process/next_tick.js:68:7)
npminstall version: 3.20.1
npminstall args: F:\Program Files\nodejs\node.exe C:\Users\zhangjun.fnst\AppData\Roaming\npm\node_modules\cnpm\node_modules\npminstall\bin\install.js --fix-bug-versions --china --userconfig=C:\Users\zhangjun.fnst\.cnpmrc --disturl=https://npm.taobao.org/mirrors/node --registry=https://registry.npm.taobao.org -g ionic

 

又是代理的问题~~

 

解决方案：

cnpm config set proxy http://example.com:8080
cnpm config set https-proxy http://example.com:8080

再执行 cnpm install -g ionic，就没问题了

6、安装Cordova

cnpm install -g cordova

7、创建项目

ionic start demo_test tabs

• tabs ：简单的3标签布局
• sidemenu：侧面有可转换菜单的布局
• blank：一个单页的裸机
• super：具有超过14个即用型页面设计的入门项目
• tutorial：一个引导启动项目

如果您在开始时未指定模板，系统将提示您选择一个模板。

 

报错：

ERROR] Network connectivity error occurred, are you offline?

        If you are behind a firewall and need to configure proxy settings, see:
        https://ionicframework.com/docs/cli/configuring.html#using-a-proxy

        Error: getaddrinfo ENOTFOUND d2ql0qc7j8u4b2.cloudfront.net d2ql0qc7j8u4b2.cloudfront.net:443

 

哇！又是代理的锅！！！

这次设置3个系统环境变量（就行jdk环境变量一样，我这里就不详细说了）

HTTP_PROXY=http://proxy.example.com:8888
HTTPS_PROXY=https://proxy.example.com:8888
IONIC_HTTP_PROXY=http://proxy.example.com:8888

具体请参考参考：https://ionicframework.com/docs/cli/configuring.html#using-a-proxy

如果还不行，就重启电脑，应该就可以了==

再运行ionic start demo_test tabs，成功

 

 

但又报了个错，报错信息如上图所示

因为将npm 换成了cnpm

所以进入创建的项目目录中，执行：cnpm -i 即可（时间比较长，如果出错多试几次就好了）

成功

8、启动项目

ionic serve

但又报错：

PS F:\demo1\demo_test> ionic serve
> ng run app:serve --host=0.0.0.0 --port=8100
[ng] internal/modules/cjs/loader.js:583
[ng]     throw err;
[ng]     ^
[ng] Error: Cannot find module 'ajv'
[ng]     at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
[ng]     at Function.Module._load (internal/modules/cjs/loader.js:507:25)
[ng]     at Module.require (internal/modules/cjs/loader.js:637:17)
[ng]     at require (internal/modules/cjs/helpers.js:22:18)
[ng]     at Object. (F:\demo1\demo_test\node_modules\_@[email protected]@@angular-devkit\core\src\json\schema\registry.js:10:13)
[ng]     at Module._compile (internal/modules/cjs/loader.js:689:30)
[ng]     at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
[ng]     at Module.load (internal/modules/cjs/loader.js:599:32)
[ng]     at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
[ng]     at Function.Module._load (internal/modules/cjs/loader.js:530:3)

[ERROR] ng has unexpectedly closed (exit code 1).

        The Ionic CLI will exit. Please check any output above for error details.

 

解决方法：在项目中
删除node_modules
重新cnpm install

然后再执行ionic serve 成功：