Response timeout while trying to fetch https://registry.npmjs.com/pacote - node.js

Question

I cant install nativescript-cli with npm when I run npm install nativescript -g. I dont know what is the reason.
node --version => 12.16.2
npm --version => 6.14.4
I tried :
-delete cache folder and npm cache clean --force
-npm config set registry http://registry.npmjs.com
-turn off anti malware
but the issue is still unresolved.
here is npm log file output
11148 warn tar ENOENT: no such file or directory, open 'C:\Users\Mohammad Reza\AppData\Roaming\npm\node_modules\.staging\es5-ext-57d686a6\test\function\invoke.js'
11149 warn tar ENOENT: no such file or directory, open 'C:\Users\Mohammad Reza\AppData\Roaming\npm\node_modules\.staging\es5-ext-57d686a6\function\is-arguments.js'
11150 http fetch GET 200 https://registry.npmjs.org/#sinonjs/commons/-/commons-1.6.0.tgz 22ms (from cache)
11151 verbose unlock done using C:\Users\Mohammad Reza\AppData\Roaming\npm-cache\_locks\staging-60ffea16dce7f1cb.lock for C:\Users\Mohammad Reza\AppData\Roaming\npm\node_modules\.staging
11152 timing stage:rollbackFailedOptional Completed in 2ms
11153 timing stage:runTopLevelLifecycles Completed in 200098ms
11154 warn optional SKIPPING OPTIONAL DEPENDENCY: #types/node#8.10.30 (node_modules\nativescript\node_modules\#types\node):
11155 warn optional SKIPPING OPTIONAL DEPENDENCY: Response timeout while trying to fetch https://registry.npmjs.com/#types%2fnode (over 30000ms)
11156 warn optional SKIPPING OPTIONAL DEPENDENCY: typescript#3.3.4000 (node_modules\nativescript\node_modules\typescript):
11157 warn optional SKIPPING OPTIONAL DEPENDENCY: Response timeout while trying to fetch https://registry.npmjs.com/typescript (over 30000ms)
11158 verbose type body-timeout
11159 verbose stack FetchError: Response timeout while trying to fetch https://registry.npmjs.com/pacote (over 30000ms)
11159 verbose stack at Timeout._onTimeout (C:\Users\Mohammad Reza\AppData\Roaming\npm\node_modules\npm\node_modules\node-fetch-npm\src\body.js:189:16)
11159 verbose stack at listOnTimeout (internal/timers.js:549:17)
11159 verbose stack at processTimers (internal/timers.js:492:7)
11160 verbose cwd C:\Windows\system32
11161 verbose Windows_NT 10.0.18363
11162 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Mohammad Reza\\AppData\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js" "install" "nativescript" "-g"
11163 verbose node v12.16.2
11164 verbose npm v6.14.4
11165 error Response timeout while trying to fetch https://registry.npmjs.com/pacote (over 30000ms)
11166 verbose exit [ 1, true ]

Answer 1

I was facing same issue, it seems to be a problem with npm versions 6.14.*. Downgrading to npm#6.13.1 worked for me.
npm i npm#6.13.1 -g

Answer 2

I've faced this issue and I tried all the answers on Stackoverflow but not worked for me, finally I found solution for this issue:
First of all you have to uninstall nodejs and remove all the files related him
Go to "Register Editor" and search for all "nodejs", "node.js" and delete them
Restart your computer
And reinstall nodejs then install angular.
it's worked for me,
good luck :)