Vue疑难杂症

安装Vue脚手架的时候

指令：npm install vue-cli -g

Microsoft Windows [版本 6.1.7601]
版权所有 (c) 2009 Microsoft Corporation。保留所有权利。

C:UsersAdministrator>npm install vue-cli -g
npm WARN deprecated coffee-script@1.12.7: CoffeeScript on NPM has moved to "coff
eescript" (no hyphen)
C:UsersAdministratorAppDataRoaming
pmvue -> C:UsersAdministratorAppData
Roaming
pm
ode_modulesvue-cliinvue
C:UsersAdministratorAppDataRoaming
pmvue-init -> C:UsersAdministratorAp
pDataRoaming
pm
ode_modulesvue-cliinvue-init
C:UsersAdministratorAppDataRoaming
pmvue-list -> C:UsersAdministratorAp
pDataRoaming
pm
ode_modulesvue-cliinvue-list
+ vue-cli@2.9.6
added 4 packages from 1 contributor, removed 389 packages and updated 235 packag
es in 251.71s

C:UsersAdministrator>

报了一个警告：如下

        npm WARN deprecated coffee-script@1.12.7: CoffeeScript on NPM has moved to "coffeescript" (no hyphen)

解决办法（说明）：coffee-script 这个依赖包xx的改名了，不影响你使用的,还有coffee-script已经过气了:)

初始化Vue项目的时候

vue init webpack test-2vlft

G:sinoydpersonalProject>vue init webpack test-2vlft

? Project name test-2vlft
? Project description A Vue.js project
? Author xichaoqun <1593760568@qq.com>
? Vue build (Use arrow keys)
? Vue build standalone
? Install vue-router? Yes
? Use ESLint to lint your code? No
? Set up unit tests No
? Setup e2e tests with Nightwatch? No
? Should we run `npm install` for you after the project has been created? (recom
? Should we run `npm install` for you after the project has been created? (recom

mended) npm

   vue-cli · Generated "test-2vlft".


# Installing project dependencies ...
# ========================

npm WARN deprecated bfj-node4@5.3.1: Switch to the `bfj` package for fixes and n
ew features!
npm WARN deprecated browserslist@2.11.3: Browserslist 2 could fail on reading Br
owserslist >3.0 config used in other tools.
npm ERR! Unexpected end of JSON input while parsing near '...1PMB+NX2XCrirPUJC2m
A6'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:UsersAdministratorAppDataRoaming
pm-cache\_logs2019-04-20T0
5_10_15_943Z-debug.log

# Project initialization finished!
# ========================

To get started:

  cd test-2vlft
  npm run dev

Documentation can be found at https://vuejs-templates.github.io/webpack

   警告+错误：

npm WARN deprecated bfj-node4@5.3.1: Switch to the `bfj` package for fixes and new features!
npm WARN deprecated browserslist@2.11.3: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools.
npm ERR! Unexpected end of JSON input while parsing near '...1PMB+NX2XCrirPUJC2mA6'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:UsersAdministratorAppDataRoaming
pm-cache\_logs2019-04-20T05_10_15_943Z-debug.log

解决办法：

解决办法：
cnpm install (在安装淘宝镜像的前提下　　npm install -g cnpm --registry=https://registry.npm.taobao.org    cmd切入项目的所在目录，执行cnpm install)
例子：  G:sinoydpersonalProject	est-2vlft>cnpm install

安装Vue脚手架的时候

Vue项目打包

首先要 cnpm 下载 webpack

cmd 执行以下命令
cnpm install webpack -g
cnpm install webpack-cli -g

最后输入 webpack -v 弹出版本 表示安装成功

cmd 输入 cnpm install webpack -g  会报错 ：

[fsevents@^1.2.7] optional install error: Package require os(darwin) not compati
ble with your platform(win32)

大致意思：这是一个可以忽略的错误，fsevents是可选的依赖，只能应用于maxOS系统，不适合Windows或者Linux，也就是忽略即可。

打包过程：先停止该Vue项目，cmd 输入 npm run build 等待，即打包完成