ionic3 - nvm 与 npm 配置“前缀”选项不兼容：当前设置为“/usr/local”

Question

This is ionic3 project, after I installed nvm , can running without warning. But when I restart my mac and restart VSCode that warning coming out.

nvm is not compatible with the npm config "prefix" option: currently set to "/usr/local" Run npm config delete prefix or nvm use --delete-prefix v8.6.0 --silent to unset it.

nvm --version 0.33.8

ionic info

cli packages: (/usr/local/lib/node_modules)

    @ionic/cli-utils  : 1.19.1
    ionic (Ionic CLI) : 3.19.1

global packages:

    cordova (Cordova CLI) : 7.1.0

local packages:

    @ionic/app-scripts : 3.1.7
    Cordova Platforms  : android 6.3.0 ios 4.4.0
    Ionic Framework    : ionic-angular 3.9.2

System:

    ios-deploy : 1.9.2
    Node       : v6.11.3
    npm        : 3.10.10
    OS         : macOS Sierra
    Xcode      : Xcode 9.2 Build version 9C40b

Environment Variables:

    ANDROID_HOME : not set

Misc:

    backend : pro

Answer 1

Add this to VSCode settings:

"terminal.integrated.shellArgs.osx": []

As discussed here .

Answer 2

nvm will manage node packages folder based on installing node. To solve your problem just delete or unset the "prefix" setting:

npm config delete prefix

if this not help try to remove the prefix value manually. Edit the "~/.npmrc" file and remove the "prefix" variable.

Answer 3

I got this same error msg in VSC's integrated terminal when running npm run start . The error message is displayed as soon as the terminal is loaded, but it doesn't happen on my external terminal (using iTerm2).

I know this happened to me bc I globally installed npm using another version of node .

To resolve it, I went ahead and looked for the old npm folder and removed it.

Find the path by running which npm and then find old node_modules to remove by running this: ls -la /usr/local/bin | grep "np[mx]" ls -la /usr/local/bin | grep "np[mx]" . This will give you two paths, so use these two paths to remove by running the following:

rm -R /usr/local/bin/npm /usr/local/node_modules/npm/bin/npm-cli.js
rm -R /usr/local/bin/npx /usr/local/node_modules/npm/bin/npx-cli.js

Restart VSC and open a new terminal to run npm run start , and you shouldn't encounter the issue anymore.

Answer 4

Just remove .npmrc file from root directory. Redefine your custom configuration for node. This time will work!