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Setup MacOS 10.13 High Sierra Discussion

Chris Oliver asked in General

It Works!! Thanks!
High Sierra 10.13.1 (Beta)

Rabnawaz Khan Rabnawaz Khan

it is great work for me On mac High serria

Nisha Bhanushali Nisha Bhanushali

I am facing the below error while trying to install rails :
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory.

Alejandro Reyna Alejandro Reyna

sudo gem install whatever_gem_to_install

gem install rails -v 5.1.4 --user-install
You should try runnig `rbenv init`  before running the `gem install whatever` and also I suggest you to add it to your shell loading script.

You might forgot this step:

rbenv install 2.5.1
rbenv global 2.5.1


Tks! It Works!!!!

greggbrookline greggbrookline

Hi. I am trying to follow these directions but get the error

error: error reading '/dev/fd/9'
1 error generated.
clang: error: unable to remove file: Operation not permitted
dtrace: failed to compile script probes.d: Preprocessor failed to process input program

I am running OSX 10.13.3.

I found a recommended work around here:, but it doesn't seem work fix the problem for me.

Thank you so much. You're a lifesaver...
I created an account because I wanted to thank you! Works great! (10.13.3)
I  got a problem with: An error occurred while installing sqlite3 (1.3.13), and Bundler cannot
Make sure that `gem install sqlite3 -v '1.3.13'` succeeds before bundling.
while after I run 'bundle install', it shows that below: 
ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory.

I had the same problem. Based on this thread, I removed all my sqlite installs with "brew uninstall --force sqlite" and then installed sqlite3 v 1.3.13 with using Ruby instead: "gem install sqlite3 -v '1.3.13'" Now I can at least build a default app successfully: "rails new myapp"

So I followed these directions to a T, and when I try to go to the site (localhost:3000) causes rails server to stop, and spits out an generic error Abort trap: 6. I go to the log file and there is no file, but there is a ton of text above the error. What gives?


Thank you , this guide is quite easy and straigtforward. Process is done


I was able to get everything working with the exception of connection to my GITHUB account. I am receiving the following error when connecting... Permission denied (publickey). Any ideas on how to resolve?


Hi when i run the 'Final steps' which starts with rails new my app . i get in red conflict .gitignore on the terminal. also when i run the local host 3000 link on safari it says safari can't connect to the server.

rails new myapp -d mysql

If you want to use Postgres

Note you will need to change config/database.yml's username to be

the same as your OSX user account. (for example, mine is 'chris')

rails new myapp -d postgresql

Move into the application directory

cd myapp

If you setup MySQL or Postgres with a username/password, modify the

config/database.yml file to contain the username/password that you specified

Create the database

rake db:create

rails server

identical Rakefile
identical .ruby-version
conflict .gitignore
Overwrite /Users/owner/myapp/.gitignore? (enter "h" for help) [Ynaqdhm]

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