Error Occurs When Trying to Install Homebrew on a MAC for Ruby on Rails

Error occurs when trying to install Homebrew on a Mac for Ruby on Rails

I have solved this issue. It was a whitespace issue in my application.yml file. I did not format this file correctly as YAML is whitespace sensitive unlike Ruby. Once the file was formatted using tabs or double spaces the rails server worked again.

First time homebrew installation failure

delete this file

/usr/local/Homebrew/.git/refs/remotes/origin/master.lock

try

rm -f /usr/local/Homebrew/.git/refs/remotes/origin/master.lock

and then try again

Installing Rails on Mac OS fails with several errors

Run this command first

sudo chown -R <your username>:admin /usr/local

Replace <your username> with whatever your username on your mac is. So, in my case, I would run

sudo chown -R Adrian:admin /usr/local

Then try installing rbenv and ruby-build.

Your problem is most likely caused by the use of package installers (.pkg files) as they tend to create files as root in places where they shouldn't.

Note: you can find out your username by running whoami

Brew update errors

There's another good guide here that covers more of the pre-requisites.

http://www.moncefbelyamani.com/how-to-install-xcode-homebrew-git-rvm-ruby-on-mac/

Having issues Installing postgresql with homebrew

It appears the URL has changed but the formula hasn't been updated yet.

The formula has now been updated. Instead of manually fixing
the recipe as the rest of this answer suggests, just update your
homebrew recipes via brew update and try the install again.

You can edit the formula yourself with the brew edit postgresql command. Change the url to http://ftp.postgresql.org/pub/source/v9.1.1/postgresql-9.1.1.tar.bz2 and try to install again.

Error installing Rails on Macbook Air OS 10.9

I followed the steps in the blog post below and I finally got rails working on my 2012 MacBook Air running Maverick(10.9.4).

http://www.createdbypete.com/articles/ruby-on-rails-development-setup-for-mac-osx/

Though probably overkill, I reloaded Terminal after I entered each line.

Now when I type:

$gem -v

I get

2.0.3

and if I type

$ruby -v

I get

ruby 2.0.0p451 (2014-02-24 revision 45167) [universal.x86_64-darwin13]

And finally, when I type

$rails -v

I get

Rails 4.1.4

:)

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