Bundle Install will not complete on new Rails app after Mavericks upgrade - ruby-on-rails

Question

My near term goal is to continue running some tutorials from RailsApp. I had previously had no issues running rails and writing apps and doing some older tutorials. A new one came out that used a template file for thee startup app. I needed to upgrade my ruby & rails versions for this, but it still would not work (question here: Error with RailsApps starter app for rails-devise-roles tutorial) so I went ahead and upgraded mavericks.
My question is how can I get the rails to create a new app and run ? i can't develop anything now. I don't know how ot revert to older versions of ruby (maybe one that does not use sqlite3?) [<
I have googled & stack overflow searched similar problems and none of the solutions seem to work for me so far.
Basic info:
$which ruby
/Users/suzanne/.rvm/rubies/ruby-2.1.2/bin/ruby
$ruby -v
ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
$ xcode-select --print-path
/Applications/Xcode.app/Contents/Developer
I have also opened XCode, updated libraries requested after opening. Version listed on splash page is Version 5.1.1 (5B1008)
Now I have done the following steps to test rails and get a basic new app working
mkdir myapp
cd myapp
rvm use ruby-2.1.2#myapp --ruby-version --create
gem install rails
rails new .
and at this point I get this error:
Could not find gem 'sqlite3 (>= 0) ruby' in the gems available on this machine.
XCode is installed, gcc is installed, sqlite3 is installed.
$ whereis sqlite3
/usr/bin/sqlite3
$bundle install
Fetching gem metadata from https://rubygems.org/..........
Resolving dependencies...
Using rake 10.3.2
Using i18n 0.6.11
Using json 1.8.1
Using minitest 5.4.1
Using thread_safe 0.3.4
Using tzinfo 1.2.2
Using activesupport 4.1.5
Using builder 3.2.2
Using erubis 2.7.0
Using actionview 4.1.5
Using rack 1.5.2
Using rack-test 0.6.2
Using actionpack 4.1.5
Using mime-types 1.25.1
Using polyglot 0.3.5
Using treetop 1.4.15
Using mail 2.5.4
Using actionmailer 4.1.5
Using activemodel 4.1.5
Using arel 5.0.1.20140414130214
Using activerecord 4.1.5
Using bundler 1.7.2
Using coffee-script-source 1.8.0
Using execjs 2.2.1
Using coffee-script 2.3.0
Using thor 0.19.1
Using railties 4.1.5
Using coffee-rails 4.0.1
Using hike 1.2.3
Using multi_json 1.10.1
Using jbuilder 2.1.3
Using jquery-rails 3.1.2
Using tilt 1.4.1
Using sprockets 2.11.0
Using sprockets-rails 2.1.4
Using rails 4.1.5
Using rdoc 4.1.1
Using sass 3.2.19
Using sass-rails 4.0.3
Using sdoc 0.4.1
Using spring 1.1.3
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/Users/suzanne/.rvm/rubies/ruby-2.1.2/bin/ruby extconf.rb
checking for sqlite3.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/suzanne/.rvm/rubies/ruby-2.1.2/bin/ruby
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include
--without-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/lib
--enable-local
--disable-local
/Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:587:in `try_cpp'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:1120:in `block in find_header'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:321:in `open'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:321:in `open'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:1119:in `find_header'
from extconf.rb:35:in `<main>'
extconf failed, exit code 1
Gem files will remain installed in /Users/suzanne/.rvm/gems/ruby-2.1.2#myapp/gems/sqlite3-1.3.9 for inspection.
Results logged to /Users/suzanne/.rvm/gems/ruby-2.1.2#myapp/extensions/x86_64-darwin-13/2.1.0-static/sqlite3-1.3.9/gem_make.out
An error occurred while installing sqlite3 (1.3.9), and Bundler cannot continue.
Make sure that `gem install sqlite3 -v '1.3.9'` succeeds before bundling.
$ gem install sqlite3 -v '1.3.9'
Building native extensions. This could take a while...
ERROR: Error installing sqlite3:
ERROR: Failed to build gem native extension.
/Users/suzanne/.rvm/rubies/ruby-2.1.2/bin/ruby extconf.rb
checking for sqlite3.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/suzanne/.rvm/rubies/ruby-2.1.2/bin/ruby
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include
--without-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/lib
--enable-local
--disable-local
/Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:587:in `try_cpp'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:1120:in `block in find_header'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:321:in `open'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:321:in `open'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'
from /Users/suzanne/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/mkmf.rb:1119:in `find_header'
from extconf.rb:35:in `<main>'
extconf failed, exit code 1
Gem files will remain installed in /Users/suzanne/.rvm/gems/ruby-2.1.2#myapp/gems/sqlite3-1.3.9 for inspection.
Results logged to /Users/suzanne/.rvm/gems/ruby-2.1.2#myapp/extensions/x86_64-darwin-13/2.1.0-static/sqlite3-1.3.9/gem_make.out

Answer 1

There was a change in Mavericks that means you have to install the command line tools.
Type in a terminal window
xcode-select --install
You should then be prompted to install the command line tools
Once that is done, you should be able to build your gems

Answer 2

Try gem install sqlite3 -- --with-sqlite3-dir=/opt/local and then run bundle install again.
If that doesn't work, I think you just need to install sqlite3. If you have Homebrew, this should work:
brew install sqlite3

Answer 3

Had the same problem running Rails 4.1.5 on CentOS 6.5.
I fixed it by:
Installing the sqlite dev library (On CentOS it's $ yum install -y sqlite-devel); and
Installing the sqlite3 gem with gem install sqlite3.
I was able to create a new rails project afterward.