installing expo-cli in windows 10 ends up with errors - node.js

I installed nodejs v12.16.2 on windows 10 to work with react-native for learning stuff, so there is no need to install android studio or xocde. The simplest way for doing that as i read in the documentation of react-native is by using expo-cli, i used the following commands to install it on my machine but it doesn't work:
$ npm install -g expo-cli
$ npm install expo-cli --global
$ yarn add global expo-cli
all these commands ends up with errors, what do i missed, and how to fix this problem.
here is the details of the problem:
npm install expo-cli --global npm WARN deprecated joi#14.0.4: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features, bug fixes, and security patches. If you are unable to upgrade at this time, paid support is available for older versions (hapi.im/commercial).
npm WARN deprecated request#2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/traveling-fastlane-darwin#1.13.1 (node_modules\expo-cli\node_modules\#expo\traveling-fastlane-darwin):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/traveling-fastlane-darwin#1.13.1: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-freebsd-x64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-freebsd-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-freebsd-x64#2.2.8: wanted {"os":"freebsd","arch":"x64"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-darwin-ia32#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-darwin-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-darwin-ia32#2.2.8: wanted {"os":"darwin","arch":"ia32"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-darwin-x64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-darwin-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-darwin-x64#2.2.8: wanted {"os":"darwin","arch":"x64"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-freebsd-ia32#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-freebsd-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-freebsd-ia32#2.2.8: wanted {"os":"freebsd","arch":"ia32"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-linux-arm64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-linux-arm64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-linux-arm64#2.2.8: wanted {"os":"linux","arch":"arm64"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-linux-ia32#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-linux-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-linux-ia32#2.2.8: wanted {"os":"linux","arch":"ia32"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-linux-arm#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-linux-arm):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-linux-arm#2.2.8: wanted {"os":"linux","arch":"arm"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-sunos-x64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-sunos-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-sunos-x64#2.2.8: wanted {"os":"sunos","arch":"x64"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-linux-x64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-linux-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-linux-x64#2.2.8: wanted {"os":"linux","arch":"x64"} (current: {"os":"win32","arch":"ia32"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-win32-x64#2.2.8-beta.1 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-win32-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-win32-x64#2.2.8-beta.1: wanted {"os":"win32","arch":"x64"} (current: {"os":"win32","arch":"ia32"})
npm ERR! Unexpected end of JSON input while parsing near '...in-proposal-unicode-p'

The warnings you see are unavoidable as a result of using optionalDependencies from npm to install the ngrok package that works for your platform, so do not worry about that. The error that is relevant to you is "npm ERR! Unexpected end of JSON input while parsing near ..." - there are a lot of related posts on this topic and they usually recommend that you do the following:
Clear the npm cache npm cache clean --force
Run the install again npm i -g expo-cli
See https://stackoverflow.com/a/47896884/659988 for an example of a similar problem with a different package.

Related

How to install PM2 on Node js 8?

I have tried to install PM2 on my node js project that running on node JS 8. How to install PM2 on Node js 8 ?
Error message:
npm install
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: ikt#git+http://ikt.pm2.io/ikt.git#master (node_modules/pm2/node_modules/ikt):
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: Error while executing:
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: /usr/bin/git ls-remote -h -t http://ikt.pm2.io/ikt.git
npm WARN optional SKIPPING OPTIONAL DEPENDENCY:
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fatal: unable to access 'http://ikt.pm2.io/ikt.git/': Could not resolve host: ikt.pm2.io
npm WARN optional SKIPPING OPTIONAL DEPENDENCY:
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: exited with error code: 128
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.13 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#0.3.8 (node_modules/pm2/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#0.3.8: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
For installing PM2 please use:
npm install -g pm2

can not install expo-cli?

I'm trying to install the expo-cli package from npm. But everytime I do it I get this error, and I don't know why is this happening?
npm WARN deprecated uuid#3.4.0: Please upgrade to version 7 or higher. Older versions may use Math.random() in certain circumstances, which is known to be problematic. See https://v8.dev/blog/math-random for details.
npm WARN deprecated request#2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated har-validator#5.1.5: this library is no longer supported
npm WARN deprecated resolve-url#0.2.1: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated urix#0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated chokidar#2.1.8: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
npm WARN deprecated fsevents#1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN deprecated uuid#3.0.0: Please upgrade to version 7 or higher. Older versions may use Math.random() in certain circumstances, which is known to be problematic. See https://v8.dev/blog/math-random for details.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#~2.3.2 (node_modules\expo-cli\node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#^1.2.7 (node_modules\expo-cli\node_modules\watchpack-chokidar2\node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#^1.2.7 (node_modules\expo-cli\node_modules\webpack-dev-server\node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm ERR! code EEXIST
npm ERR! path C:\Users\{User}\AppData\Roaming\npm\node_modules\expo-cli\bin\expo.js
npm ERR! dest C:\Users\{User}\AppData\Roaming\npm\expo.cmd
npm ERR! EEXIST: file already exists, cmd shim 'C:\Users\{User}\AppData\Roaming\npm\node_modules\expo-cli\bin\expo.js' -> 'C:\Users\{User}\AppData\Roaming\npm\expo.cmd'
npm ERR! File exists: C:\Users\{User}\AppData\Roaming\npm\expo.cmd
npm ERR! Remove the existing file and try again, or run npm
npm ERR! with --force to overwrite files recklessly.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\{User}\AppData\Roaming\npm-cache\_logs\2021-09-17T09_52_53_814Z-debug.log
Go to C:\Users{User}\AppData\Roaming\npm\node_modules and remove Expo folder
then go to C:\Users{User}\AppData\Roaming\npm\ and remove every expo related file
then reinstall it

creating and using a react app on Ubuntu Linux

I can't get a react app installed on my Ubuntu 20.04.1 LTS and not having any success.
I'm in VS Code in the terminal window with node v10.19.0 installed.
I tried once using
$ npm cache clean --force
before going back to the above steps and got the same result.
Any suggestions? Details follow.
$ npx create-react-app
[...]
Installing template dependencies using npm...
npm WARN tsutils#3.17.1 requires a peer of typescript#>=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#2.1.3 (node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#2.2.1 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.2.1: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.13 (node_modules/watchpack-chokidar2/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.13 (node_modules/webpack-dev-server/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
+ web-vitals#0.2.4
+ #testing-library/jest-dom#5.11.6
+ #testing-library/user-event#12.6.0
+ #testing-library/react#11.2.2
added 29 packages from 77 contributors and audited 1941 packages in 17.132s
121 packages are looking for funding
run `npm fund` for details
found 0 vulnerabilities
Removing template package using npm...
npm WARN tsutils#3.17.1 requires a peer of typescript#>=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#2.1.3 (node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#2.2.1 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.2.1: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.13 (node_modules/watchpack-chokidar2/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.13 (node_modules/webpack-dev-server/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
$ npm start
[...]
events.js:174
throw er; // Unhandled 'error' event
Error: ENOSPC: System limit for number of file watchers reached, watch '/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/public'
at FSWatcher.start (internal/fs/watchers.js:165:26)
at Object.watch (fs.js:1258:11)
at createFsWatchInstance (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:38:15)
at setFsWatchListener (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:81:15)
at FSWatcher.NodeFsHandler._watchWithNodeFs (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:233:14)
at FSWatcher.NodeFsHandler._handleDir (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:429:19)
at FSWatcher.<anonymous> (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:477:19)
at FSWatcher.<anonymous> (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:482:16)
at FSReqWrap.oncomplete (fs.js:154:5)
Emitted 'error' event at:
at FSWatcher._handleError (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/index.js:260:10)
at createFsWatchInstance (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:40:5)
at setFsWatchListener (/home/hks/Dropbox/old-dog-new-tricks/learn-react-in-x-minutes/node_modules/webpack-dev-server/node_modules/chokidar/lib/nodefs-handler.js:81:15)
[... lines matching original stack trace ...]
at FSReqWrap.oncomplete (fs.js:154:5)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! learn-react-in-x-minutes#0.1.0 start: `react-scripts start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the learn-react-in-x-minutes#0.1.0 start 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! /home/hks/.npm/_logs/2020-12-17T20_50_56_107Z-debug.log

Can't install Expo Cli using npm install -g expo-cli

I tried installing explo cli on windows using npm install -g expo-cli and I am only getting dozens of warnings along with dozens of errors as below:
Microsoft Windows [Version 10.0.18363.1082]
(c) 2019 Microsoft Corporation. All rights reserved.
C:\Users\divya>npm install -g expo-cli
npm WARN deprecated #hapi/joi#17.1.1: joi is leaving the #hapi organization and moving back to 'joi' (https://github.com/sideway/joi/issues/2411)
npm WARN deprecated #hapi/formula#2.0.0: This version has been deprecated and is no longer supported or maintained
npm WARN deprecated request#2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated har-validator#5.1.5: this library is no longer supported
npm WARN deprecated urix#0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated resolve-url#0.2.1: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated chokidar#2.1.8: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
npm WARN deprecated fsevents#1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN deprecated core-js#2.6.11: core-js#<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js#3.
npm WARN deprecated joi#11.4.0: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features, bug fixes, and security patches. If you are unable to upgrade at this time, paid support is available for older versions (hapi.im/commercial).
npm WARN deprecated topo#2.0.2: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features, bug fixes, and security patches. If you are unable to upgrade at this time, paid support is available for older versions (hapi.im/commercial).
npm WARN deprecated hoek#4.2.1: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features, bug fixes, and security patches. If you are unable to upgrade at this time, paid support is available for older versions (hapi.im/commercial).
npm WARN rollback Rolling back is-glob#3.1.0 failed (this is probably harmless): EPERM: operation not permitted, lstat 'C:\Users\divya\AppData\Roaming\npm\node_modules\expo-cli\node_modules\watchpack-chokidar2\node_modules\glob-parent\node_modules'
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/traveling-fastlane-darwin#1.15.1 (node_modules\expo-cli\node_modules\#expo\traveling-fastlane-darwin):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/traveling-fastlane-darwin#1.15.1: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-win32-ia32#2.2.8-beta.1 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-win32-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-win32-ia32#2.2.8-beta.1: wanted {"os":"win32","arch":"ia32"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-freebsd-x64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-freebsd-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-freebsd-x64#2.2.8: wanted {"os":"freebsd","arch":"x64"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-linux-arm#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-linux-arm):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-linux-arm#2.2.8: wanted {"os":"linux","arch":"arm"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-sunos-x64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-sunos-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-sunos-x64#2.2.8: wanted {"os":"sunos","arch":"x64"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-linux-ia32#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-linux-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-linux-ia32#2.2.8: wanted {"os":"linux","arch":"ia32"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-darwin-x64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-darwin-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-darwin-x64#2.2.8: wanted {"os":"darwin","arch":"x64"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-linux-x64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-linux-x64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-linux-x64#2.2.8: wanted {"os":"linux","arch":"x64"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-freebsd-ia32#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-freebsd-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-freebsd-ia32#2.2.8: wanted {"os":"freebsd","arch":"ia32"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-linux-arm64#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-linux-arm64):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-linux-arm64#2.2.8: wanted {"os":"linux","arch":"arm64"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: #expo/ngrok-bin-darwin-ia32#2.2.8 (node_modules\expo-cli\node_modules\#expo\ngrok-bin\node_modules\#expo\ngrok-bin-darwin-ia32):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for #expo/ngrok-bin-darwin-ia32#2.2.8: wanted {"os":"darwin","arch":"ia32"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#~2.1.2 (node_modules\expo-cli\node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN notsup Unsupported engine for watchpack-chokidar2#2.0.0: wanted: {"node":"<8.10.0"} (current: {"node":"12.18.4","npm":"6.14.6"})
npm WARN notsup Not compatible with your version of node/npm: watchpack-chokidar2#2.0.0
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#^1.2.7 (node_modules\expo-cli\node_modules\watchpack-chokidar2\node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#^1.2.7 (node_modules\expo-cli\node_modules\webpack-dev-server\node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN #expo/configure-splash-screen#0.1.19 requires a peer of expo-splash-screen#* but none is installed. You must install peer dependencies yourself.
npm WARN #pmmmwh/react-refresh-webpack-plugin#0.3.3 requires a peer of react-refresh#^0.8.2 but none is installed. You must install peer dependencies yourself.
npm ERR! code EPERM
npm ERR! syscall unlink
npm ERR! path C:\Users\divya\AppData\Roaming\npm\node_modules\expo-cli\node_modules\#expo\.xdl.DELETE\binaries\windows\adb\AdbWinApi.dll
npm ERR! errno -4048
npm ERR! Error: EPERM: operation not permitted, unlink 'C:\Users\divya\AppData\Roaming\npm\node_modules\expo-cli\node_modules\#expo\.xdl.DELETE\binaries\windows\adb\AdbWinApi.dll'
npm ERR! [OperationalError: EPERM: operation not permitted, unlink 'C:\Users\divya\AppData\Roaming\npm\node_modules\expo-cli\node_modules\#expo\.xdl.DELETE\binaries\windows\adb\AdbWinApi.dll'] {
npm ERR! cause: [Error: EPERM: operation not permitted, unlink 'C:\Users\divya\AppData\Roaming\npm\node_modules\expo-cli\node_modules\#expo\.xdl.DELETE\binaries\windows\adb\AdbWinApi.dll'] {
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'unlink',
npm ERR! path: 'C:\\Users\\divya\\AppData\\Roaming\\npm\\node_modules\\expo-cli\\node_modules\\#expo\\.xdl.DELETE\\binaries\\windows\\adb\\AdbWinApi.dll'
npm ERR! },
npm ERR! errno: -4048,
npm ERR! code: 'EPERM',
npm ERR! syscall: 'unlink',
npm ERR! path: 'C:\\Users\\divya\\AppData\\Roaming\\npm\\node_modules\\expo-cli\\node_modules\\#expo\\.xdl.DELETE\\binaries\\windows\\adb\\AdbWinApi.dll',
npm ERR! parent: 'expo-cli'
npm ERR! }
npm ERR!
npm ERR! The operation was rejected by your operating system.
npm ERR! It's possible that the file was already in use (by a text editor or antivirus),
npm ERR! or that you lack permissions to access it.
npm ERR!
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\divya\AppData\Roaming\npm-cache\_logs\2020-09-25T09_25_11_308Z-debug.log
C:\Users\divya>expo
'expo' is not recognized as an internal or external command,
operable program or batch file.

Creating Angular app in node JS causing errors

When I created my first angular app in nodeJS I am getting these errors.
npm WARN deprecated core-js#2.6.11: core-js#<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js#3.
> core-js#2.6.11 postinstall E:\Angular_Projects\my-first-app\node_modules\babel-runtime\node_modules\core-js
> node -e "try{require('./postinstall')}catch(e){}"
> core-js#3.2.1 postinstall E:\Angular_Projects\my-first-app\node_modules\core-js
> node scripts/postinstall || echo "ignore"
> core-js#2.6.11 postinstall E:\Angular_Projects\my-first-app\node_modules\karma\node_modules\core-js
> node -e "try{require('./postinstall')}catch(e){}"
> #angular/cli#8.3.22 postinstall E:\Angular_Projects\my-first-app\node_modules\#angular\cli
> node ./bin/postinstall/script.js
npm WARN karma-jasmine-html-reporter#1.5.1 requires a peer of jasmine-core#>=3.5 but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.11 (node_modules\webpack-dev-server\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.11: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.11 (node_modules\watchpack\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.11: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.11 (node_modules\karma\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.11: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.11 (node_modules\#angular\compiler-cli\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.11: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#2.1.2 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
added 1191 packages from 1051 contributors and audited 18835 packages in 676.854s
23 packages are looking for funding
run `npm fund` for details
found 2 high severity vulnerabilities
run `npm audit fix` to fix them, or `npm audit` for details
'git' is not recognized as an internal or external command,
operable program or batch file.
I tried running npm audit fix and got these errors.
E:\Angular_Projects>npm audit fix
npm ERR! code EAUDITNOPJSON
npm ERR! audit No package.json found: Cannot audit a project without a package.json
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\anant\AppData\Roaming\npm-cache\_logs\2020-01-10T18_53_39_633Z-debug.lo
I have just installed nodejs and tried creating my first app in angular and got these errors. I m new to node js and angular. Please help.

Resources