How do I remove Permission denied @ rb_sysopen - Gem install error?

Its a permissions issue. You could fix it with this:

sudo chown -R $(whoami) /Library/Ruby/Gems/*

or possibly in your case

sudo chown -R $(whoami) /Users/stormyramsey/.rbenv/versions/2.3.2/lib/ruby/gems/*

What does this do:

This is telling the system to change the files to change the ownership to the current user. Something must have gotten messed up when something got installed. Usually this is because there are multiple accounts or users are using sudo to install when they should not always have to.

No need to change permission, just export GEM_HOME:

export GEM_HOME="$HOME/.gem"

It's likely there's a permissions problem somewhere along the .rbenv path. You might try turning on write privileges for your user with:

$ chmod -R +w ~/.rbenv

That will recursively (-R) change the file mode (chmod) to write permission (+w) for all files and directories under your user's .rbenv path. There's no particular reason for not having files set to write.

For Mac M1 systems try,

1. Allowing full disk access to terminal.

   Apple->systemPreferences->Security&Privacy->privacy(Tab)->'+' button, check in Terminal application. Then Restart terminal 2.Try using,

   sudo chflags noschg

Delete the pod folder, reinstall it again. If it doesn't work use this command:

sudo pod install --allow-root

It really doesn't matter on mac how you configure your eyaml create the dir and config manually, add some public key location to it, and its works just fine after adding full disk access to the terminal as Kewin suggested ^ ^. Thumbs up.

1. pod install
2. you got error Errno::EACCES - Permission denied @ rb_sysopen and here some path to denied file
3. do sudo chown -R whoami /Users/<your username>/Library/Caches/CocoaPods/Pods set the path that you have in your error
4. pod install
5. you got another error again
6. go to step 2

Possible errors:

1)Errno::EACCES - Permission denied @ rb_sysopen - /Users/<your username>/Library/Caches/CocoaPods/Pods/External/DoubleConversion/77f51e588bfe0e5c4fa6e9c580da62c6-76ab8.lock

2. Errno::EACCES - Permission denied @ rb_sysopen - /Users/<your username>/Library/Caches/CocoaPods/Pods/VERSION

please run:

sudo gem install pg

sudo chmod 777 file_name (because of superuser) previlage accepted