"You don't have write permissions for the /usr/bin directory." when installing Sass using the Gem command

Solution 1:

/usr/bin is protected by system integrity protection and is not writeable by anybody even root. You need to run:

sudo gem install -n /usr/local/bin sass

to install into a writeable directory

Solution 2:

For generamba:

sudo gem install -n /usr/local/bin generamba

Solution 3:

I used the same for bundler.

sudo gem install -n /usr/local/bin bundler.

It works.

Solution 4:

For CocoaPods:

sudo gem install -n /usr/local/bin cocoapods