Ruby/Mavericks 10.9/Xcode 5

Question

I'm attempting to install the Nokogiri gem on Ruby 2.0.0 while using Mavericks 10.9 along w/ Xcode 5 but I keep getting the error

You have to install development tools first

I downloaded and installed the command line tools for Mavericks from Apple's developer site so I'm not really sure what the problem is.

I've attempted the solution in this question but when inputting xcode-select --install into the terminal I just get back the help menu at --install doesn't seem to be a valid argument

Usage: xcode-select -print-path
   or: xcode-select -switch <xcode_folder_path>
   or: xcode-select -version
Arguments:
   -print-path                     Prints the path of the current Xcode folder
   -switch <xcode_folder_path>     Sets the path for the current Xcode folder
   -version                        Prints xcode-select version information

Answer 1

I encountered a similar issue after I installed Mavericks. Entering this in the command-line worked for me:

xcode-select --install

Installs the latest version of command-line tools; no need to deal with ADC!

Answer 2

first

xcode-select --switch /Applications/Xcode.app/Contents/Developer

Then, since mavericks has not yet been released, there is a bug in the Ruby header file.

You should try this solution https://gist.github.com/goshakkk/5763489 WITH a Xcode5 DP version.

Answer 3

Xcode 5.0.1 solves the Ruby header problem. It is currently available from Apple's developer site.