问题表现

D:\Project\HB\Code\H5\工程模板\trunk\HBAppTemplate>npm install
npm WARN deprecated babel-preset-es2015@6.24.1: ????  Thanks for using Babel: we recommend using babel-preset-env now: please read babeljs.io/env to update!
npm WARN deprecated connect@2.3.9: connect 2.x series is deprecated
npm WARN deprecated jade@1.11.0: Jade has been renamed to pug, please install the latest version of pug instead of jade
npm WARN deprecated constantinople@3.0.2: Please update to at least constantinople 3.1.1
npm WARN deprecated transformers@2.1.0: Deprecated, use jstransformer
npm ERR! Unexpected end of JSON input while parsing near '...ugin-transform-es2015'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Thinkpad\AppData\Roaming\npm-cache\_logs\2018-02-23T02_24_12_107Z-debug.log

处理方法

执行npm cache clean --force就可以解决。
eg:

D:\Project\HB\Code\H5\工程模板\trunk\HBAppTemplate>npm cache clean --force
npm WARN using --force I sure hope you know what you are doing.

D:\Project\HB\Code\H5\工程模板\trunk\HBAppTemplate>
D:\Project\HB\Code\H5\工程模板\trunk\HBAppTemplate>npm install
npm WARN deprecated babel-preset-es2015@6.24.1: ????  Thanks for using Babel: we recommend using babel-preset-env now: please read babeljs.io/env to update!
npm WARN deprecated jade@1.11.0: Jade has been renamed to pug, please install the latest version of pug instead of jade
npm WARN deprecated connect@2.3.9: connect 2.x series is deprecated
npm WARN deprecated constantinople@3.0.2: Please update to at least constantinople 3.1.1
npm WARN deprecated transformers@2.1.0: Deprecated, use jstransformer

> uws@9.14.0 install D:\Project\HB\Code\H5\工程模板\trunk\HBAppTemplate\node_modules\uws
> node-gyp rebuild > build_log.txt 2>&1 || exit 0

npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN HBSurveyor@1.0.0 No repository field.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.3 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

added 871 packages in 104.154s