windows npm version error

[ittce]

hi, 在check-version.js中，如果我更新了npm的版本，在node 4.4.x版本下，npm包版本为2.14.x，我将版本更新后， child_process获取到的 npm --version 还是2.14.x，造成报错

in check-version.js, if I update npm version, "child_process.execSync()" get the npm version is 2.14.x。 I exec in cmd by myself, the answer is 5.14.x

[posva]

Hi, thanks for your interest but Github issues are for bug reports and feature requests only. You can ask questions on the forum, gitter or StackOverflow.

[jquery2005]

PS E:\VueLearning> vue info

Environment Info:

System:
OS: Windows 10
CPU: (8) x64 Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
Binaries:
Node: 10.15.3 - E:\Program Files\nodejs\node.EXE
Yarn: 1.15.2 - C:\Users\msdn1\AppData\Roaming\npm\yarn.CMD
npm: 6.4.1 - E:\Program Files\nodejs\npm.CMD
Browsers:
Edge: 42.17134.1.0
npmGlobalPackages:
@vue/cli: Not Found

PS E:\CSharp\VueLearning> npm uninstall -g @vue/cli
removed 685 packages in 16.855s
PS E:\VueLearning> npm install -g @vue/cli
npm WARN deprecated joi@14.3.1: This module has moved and is now available at @hapi/joi. Please update your dependencies as this version is no longer maintained an may contain bugs and security issues.
npm WARN deprecated hoek@6.1.3: This module has moved and is now available at @hapi/hoek. Please update your dependencies as this version is no longer maintained an may contain bugs and security issues.
npm WARN deprecated cross-spawn-async@2.2.5: cross-spawn no longer requires a build toolchain, use it instead
PS E:\VueLearning>

how to update dependencies?