Most instructions suggest using rails new myapp to generate a new application and then enter the directory to begin work. I recommend to make a gemset for the beta release: If you installed the full Xcode package, remember that when you update it via the Mac App Store, you might also need to update the Command Line Tools via Xcode's Preferences. A kind reader P. Go to Xcode's Preferences via the menu bar, or by pressing the command and comma keys. Note that Terminal does not provide visual feedback when you type your password. Unit if you are using RSpec for testing. Read on for additional advice and tips. Run the application with the Rails server command: The rails new command generates the default Rails starter app. Just type it slowly and press return. If installation fails, make sure your system is configured properly look for help on Stack Overflow.
If you followed this tutorial because you're interested in Rails development, I recommend visiting Daniel Kehoe's excellent RailsApps Project. We immediately install Rails. There is also a third-party option, the osx-gcc-installer by Kenneth Reitz, that supports both Snow Leopard and Lion. The option "—ruby-version" creates. The full instructions are available on the Homebrew Wiki , but you should only need to run the command that's listed at the top of the Homebrew site: Most instructions suggest using rails new myapp to generate a new application and then enter the directory to begin work. I have not tested this setup with Xcode 3. For RVM You should get rvm 1. Installing other versions of Ruby, such as 2. With Homebrew, installing Git is as easy as this: As of August 6, , the issue above is no longer present with the latest CLT for Mountain Lion, and I believe that's the case on Lion as well, but I haven't confirmed that yet. We use the Unix "dot" convention to refer to the current directory. The rails new command generates the default Rails starter app. This will mount the disk image and open a window in your Finder that looks like this: It doesn't have to be your real email address, but if you leave this blank, Git will nag you about it every time you commit. Inside the Terminal window, copy and paste or type the following command, and press the return key on your keyboard: Otherwise, search for "xcode 3. Use your web browser to visit the application at http: For example, if you want the Rails 3. For example, you can download the application that is built in the book, Learn Ruby on Rails. Click Continue Enter your username and password, then click Sign In Enter your two-factor authentication code if you have it turned on Click Continue Enter an email address that you want to be attached to your commits. Otherwise, go to the Troubleshooting section to learn how to fix errors and warnings you might run into. The command gem install rails installs the most recent release of Rails. If you installed the standalone CLT, I recommend checking for a new version once a month or so. Once the installer launches, make sure all the checkboxes are checked, as shown in the screenshot below: You're now ready to go to Step 2. Once the installation is successful, run the following command:
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