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
After struggling , finally found exact solution. In node js software folder, node-sass\4.5.0 folder is still created in npm-cache folder. So I download win32-x64-48_binding.node manually, put it in C:\Users\Administrator\AppData\Roaming\npm-cache\node-sass\4.5.0 folder.
And run npm install command, issue resolved.