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Ubuntu 16.04
node -v
v6.10.1
npm -v
3.10.10
run npm install -g @angular/cli@latest
run ng -v
I think this is a dupe of an old issue: https://github.com/angular/angular-cli/issues/1190. It seems to be a problem with npm.
I also had this same problem what I did to fix it on Linux Mint:
but this was quite a lot of trouble I faced lol, I'm posting this here so maybe it helps other people
*Edit: *
I think many of these problems could possibly be avoided when you configure your npm's default directory according to their installation instructions on the website.
https://docs.npmjs.com/getting-started/fixing-npm-permissions#option-2-change-npms-default-directory-to-another-directory
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Most helpful comment
I also had this same problem what I did to fix it on Linux Mint:
but this was quite a lot of trouble I faced lol, I'm posting this here so maybe it helps other people
*Edit: *
I think many of these problems could possibly be avoided when you configure your npm's default directory according to their installation instructions on the website.
https://docs.npmjs.com/getting-started/fixing-npm-permissions#option-2-change-npms-default-directory-to-another-directory