node-sass installation issue

Question

When I try to install node-sass using npm, I get the following error message:

Cannot download \"https://github.com/sass/node-sass/releases/download/v3

Answer 1

I see you are running node version 8.1.4. You can also check it using node --version in the command prompt.

You'll have to use a version >= v4.5.3 instead because lower versions of node-sass are incompatible with node8. This issue has been reported on their GitHub issue page. You either have to define using v4.5.3 instead or pass the the -g parameter while installing it, which seems to fetch the latest version automagically.

when i used -g it worked properly and got the latest version

Also, as @javiergarval has pointed out, you have a typo. It should have been --save-dev instead of --save-dev-.