Angular 1 cli has multiple errors while making a new app - angularjs

Question

I've just recently installed angular 1 cli and uninstalled it, today when I installed it again I get the following errors during 'ng new' execution and I can't even build/serve it, check below this code for the build/serve errors.
> ng-core-addons#0.0.9 postinstall C:\Users\pauld\Desktop\poop\node_modules\ng-core-addons
> node ./node_modules/fs-concatenate -i content -o snippets.js
module.js:472
throw err;
^
Error: Cannot find module 'C:\Users\pauld\Desktop\poop\node_modules\ng-core-addons\node_modules\fs-concatenate'
at Function.Module._resolveFilename (module.js:470:15)
at Function.Module._load (module.js:418:25)
at Module.runMain (module.js:605:10)
at run (bootstrap_node.js:420:7)
at startup (bootstrap_node.js:139:9)
at bootstrap_node.js:535:3
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#^1.0.0 (node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.0.17: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN karma-jasmine#0.3.8 requires a peer of jasmine-core#* but none was installed.
npm WARN karma-mocha-reporter#0.3.2 requires a peer of karma#>=0.9 but none was installed.
npm WARN angularApp#0.0.0 No description
npm WARN angularApp#0.0.0 No repository field.
npm WARN angularApp#0.0.0 No license field.
npm ERR! Windows_NT 10.0.14393
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install"
npm ERR! node v7.4.0
npm ERR! npm v4.0.5
npm ERR! code ELIFECYCLE
npm ERR! ng-core-addons#0.0.9 postinstall: `node ./node_modules/fs-concatenate -i content -o snippets.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the ng-core-addons#0.0.9 postinstall script 'node ./node_modules/fs-concatenate -i content -o snippets.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the ng-core-addons package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node ./node_modules/fs-concatenate -i content -o snippets.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs ng-core-addons
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls ng-core-addons
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\pauld\Desktop\poop\npm-debug.log
When I try to serve/build I get the following, I tried to install karma package globally but didn't work either.
I even tried installing jasmine something, didn't work.
Error: Cannot find module 'karma'
at Function.Module._resolveFilename (module.js:470:15)
at Function.Module._load (module.js:418:25)
at Module.require (module.js:498:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (C:\Users\pauld\Desktop\poop\node_modules\ngcli-task-runner\index.js:3:13)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
[8:09:58 PM UTC] ERR! module.js:472
throw err;
^
Error: Cannot find module 'karma'
at Function.Module._resolveFilename (module.js:470:15)
at Function.Module._load (module.js:418:25)
at Module.require (module.js:498:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (C:\Users\pauld\Desktop\poop\node_modules\ngcli-task-runner\index.js:3:13)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
×

Answer 1

Upgrade Angular Cli to the latest version. Update the angular-cli package installed globally in your system, using below commands:
npm uninstall -g angular-cli
npm cache clean or npm cache verify (if npm > 5)
npm install -g #angular/cli#latest
It will be fixed after the upgrade.