Error running npm install in lsp-sample

[SardineFish]

I got error when running npm install
Environment

• windows 10 x64
• Node v8.7.0
• npm v5.8.0

$ npm install

> [email protected] postinstall F:\Project\other\vscode-extension-samples\lsp-sample
> cd server && npm install && cd ../client && npm install && cd ..

added 5 packages from 2 contributors in 0.591s

> [email protected] postinstall F:\Project\other\vscode-extension-samples\lsp-sample\client
> node ./node_modules/vscode/bin/install

Detected VS Code engine version: ^1.16.0
Error installing vscode.d.ts: Error: tunneling socket could not be established, cause=getaddrinfo ENOTFOUND 1080 1080:80
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] postinstall: `node ./node_modules/vscode/bin/install`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Sardi\AppData\Roaming\npm-cache\_logs\2018-04-14T15_06_43_604Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] postinstall: `cd server && npm install && cd ../client && npm install && cd ..`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Sardi\AppData\Roaming\npm-cache\_logs\2018-04-14T15_06_43_669Z-debug.log

2018-04-14T15_06_43_604Z-debug.log
2018-04-14T15_06_43_669Z-debug.log

[SardineFish]

OK, I got the problem.
I set the proxy for npm which makes this happen.
Just npm config set proxy="" works for me.