1.报错：
npm WARN deprecated [email protected]: CoffeeScript on NPM has moved to "coffeescript" (no hyphen) npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\get-stream npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\mime-db npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\form-data npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\mimic-fn npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\minimatch npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\mkdirp npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\neo-async npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\oauth-sign npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\object-assign npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\onetime npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\os-homedir npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\os-tmpdir npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\path-is-absolute npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\fd-slicer npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\performance-now npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\pify npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\pinkie-promise npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\prepend-http npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\config-chain npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\psl npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\qs npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\run-async npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\safer-buffer npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\asn1 npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\iconv-lite npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\seek-bzip npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\signal-exit npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\restore-cursor npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\sprintf-js npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\argparse npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\js-yaml npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\stat-mode npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\string_decoder npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\string-width npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\strip-dirs npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\supports-color npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\chalk npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\log-symbols npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\through npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\timed-out npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\tmp npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\external-editor npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\filenamify npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\unbzip2-stream npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\unzip-response npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\uri-js npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\ajv npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\got npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\bl npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\verror npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\win-fork npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\wordwrap npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\optimist npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\once npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\glob npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\fs-extra npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\co-fs-extra npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\xtend npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\yaml-js npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\download npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\consolidate npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\download-git-repo npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\inquirer npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\multimatch npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\read-metadata npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\ora npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\semver npm WARN checkPermissions Missing write access to C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\tildify npm ERR! path C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\get-stream npm ERR! code ENOENT npm ERR! errno -4058 npm ERR! syscall access npm ERR! enoent ENOENT: no such file or directory, access 'C:\Users\1\AppData\Roaming\npm\node_modules\vue-cli\node_modules\get-stream' npm ERR! enoent This is related to npm not being able to find a file. npm ERR! enoent npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\1\AppData\Roaming\npm-cache\_logs\2019-05-20T02_40_17_048Z-debug.log
解决方法：
使用cnpm进行重装 cnpm install --global vue-cli