我正忙着在Windows 7上使用Laravel 5.4开发一个站点。
今天当我尝试运行npm run dev时，我遇到了这个错误： app.scss不会导出内容
我试图与我们的朋友谷歌找到一个解决方案，但是不能。
我的npm版本是：3.10.10，节点版本：6.10.2
我尝试按照以下链接升级npm：Upgrade NPM 我得到了错误，现在我甚至看不到我的npm版本。
升级过程和我得到的错误：
PS C:\> Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
PS C:\> npm install -g npm-windows-upgrade
C:\Users\Sigal\AppData\Roaming\npm\npm-windows-upgrade -> C:\Users\Sigal\AppDa
grade\bin\npm-windows-upgrade.js
C:\Users\Sigal\AppData\Roaming\npm
`-- npm-windows-upgrade@4.0.1
+-- babel-polyfill@6.23.0
| +-- babel-runtime@6.23.0
| +-- core-js@2.4.1
| `-- regenerator-runtime@0.10.5
+-- chalk@1.1.3
| +-- ansi-styles@2.2.1
| +-- escape-string-regexp@1.0.5
| +-- has-ansi@2.0.0
| | `-- ansi-regex@2.1.1
| +-- strip-ansi@3.0.1
| `-- supports-color@2.0.0
+-- cli-spinner@0.2.6
+-- commander@2.9.0
| `-- graceful-readlink@1.0.1
+-- debug@2.6.8
| `-- ms@2.0.0
+-- inquirer@3.0.6
| +-- ansi-escapes@1.4.0
| +-- cli-cursor@2.1.0
| | `-- restore-cursor@2.0.0
| | +-- onetime@2.0.1
| | | `-- mimic-fn@1.1.0
| | `-- signal-exit@3.0.2
| +-- cli-width@2.1.0
| +-- external-editor@2.0.4
| | +-- iconv-lite@0.4.18
| | +-- jschardet@1.4.2
| | `-- tmp@0.0.31
| | `-- os-tmpdir@1.0.2
| +-- figures@2.0.0
| +-- lodash@4.17.4
| +-- mute-stream@0.0.7
| +-- run-async@2.3.0
| | `-- is-promise@2.1.0
| +-- rx@4.1.0
| +-- string-width@2.0.0
| | `-- is-fullwidth-code-point@2.0.0
| `-- through@2.3.8
+-- prompt@1.0.0
| +-- colors@1.1.2
| +-- pkginfo@0.4.0
| +-- read@1.0.7
| +-- revalidator@0.1.8
| +-- utile@0.3.0
| | +-- async@0.9.2
| | +-- deep-equal@0.2.2
| | +-- i@0.3.5
| | +-- mkdirp@0.5.1
| | | `-- minimist@0.0.8
| | +-- ncp@1.0.1
| | `-- rimraf@2.6.1
| | `-- glob@7.1.2
| | +-- fs.realpath@1.0.0
| | +-- inflight@1.0.6
| | | `-- wrappy@1.0.2
| | +-- inherits@2.0.3
| | +-- minimatch@3.0.4
| | | `-- brace-expansion@1.1.8
| | | +-- balanced-match@1.0.0
| | | `-- concat-map@0.0.1
| | +-- once@1.4.0
| | `-- path-is-absolute@1.0.1
| `-- winston@2.1.1
| +-- async@1.0.0
| +-- colors@1.0.3
| +-- cycle@1.0.3
| +-- eyes@0.1.8
| +-- isstream@0.1.2
| +-- pkginfo@0.3.1
| `-- stack-trace@0.0.10
`-- regenerator-runtime-only@0.8.38
+-- es6-symbol@2.0.1
| +-- d@0.1.1
| `-- es5-ext@0.10.23
| +-- es6-iterator@2.0.1
| | +-- d@1.0.0
| | `-- es6-symbol@3.1.1
| `-- es6-symbol@3.1.1
| `-- d@1.0.0
`-- promise@6.1.0
`-- asap@1.0.0
PS C:\> npm-windows-upgrade
npm-windows-upgrade v4.0.1
? Which version do you want to install? 5.0.3
Checked system for npm installation:
According to PowerShell: C:\Program Files\nodejs
According to npm: C:\Users\Sigal\AppData\Roaming\npm
Decided that npm is installed in C:\Program Files\nodejs
Upgrading npm... \
Error: Could not determine npm version.
at C:\Users\Sigal\AppData\Roaming\npm\node_modules\npm-windows-upgrade\lib
at ChildProcess.exithandler (child_process.js:211:5)
at emitTwo (events.js:106:13)
at ChildProcess.emit (events.js:191:7)
at maybeClose (internal/child_process.js:886:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
现在正在运行：npm -v我明白了：
module.js:471
throw err;
^
Error: Cannot find module 'C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.
js'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:393:7)
at startup (bootstrap_node.js:150:9)
at bootstrap_node.js:508:3
module.js:471
throw err;
^
Error: Cannot find module 'C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.
js'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:393:7)
at startup (bootstrap_node.js:150:9)
at bootstrap_node.js:508:3
有人可以帮忙吗？