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Ruby

alborz
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alborz
Full Stack JavaScript Techdegree Graduate 30,885 Points
Posted by alborz
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alborz
Full Stack JavaScript Techdegree Graduate 30,885 Points

I'm getting an error when typing "rails new testapp" -- cannot create app

Hi!

So I just reinstalled my Mac and restored most of my older stuff back onto my machine.

Anyway, when I type rails new testapp I get the following:

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /Users/alborz/.rvm/rubies/ruby-2.1.4/bin/ruby -r ./siteconf20141214-94508-wf5b6t.rb 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/alborz/.rvm/rubies/ruby-2.1.4/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
/Users/alborz/.rvm/rubies/ruby-2.1.4/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/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:587:in `try_cpp'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:1120:in `block in find_header'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:1119:in `find_header'
    from extconf.rb:30:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in /Users/alborz/.rvm/gems/ruby-2.1.4/gems/sqlite3-1.3.10 for inspection.
Results logged to /Users/alborz/.rvm/gems/ruby-2.1.4/extensions/x86_64-darwin-13/2.1.0-static/sqlite3-1.3.10/gem_make.out
An error occurred while installing sqlite3 (1.3.10), and Bundler cannot continue.
Make sure that `gem install sqlite3 -v '1.3.10'` succeeds before bundling.
         run  bundle exec spring binstub --all
/Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/resolver.rb:368:in `resolve': Could not find gem 'sqlite3 (>= 0) ruby' in the gems available on this machine. (Bundler::GemNotFound)
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/resolver.rb:166:in `start'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/resolver.rb:129:in `resolve'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/definition.rb:193:in `resolve'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/definition.rb:132:in `specs'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/definition.rb:177:in `specs_for'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/definition.rb:166:in `requested_specs'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/environment.rb:18:in `requested_specs'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/runtime.rb:13:in `setup'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler.rb:122:in `setup'
    from /Users/alborz/.rvm/gems/ruby-2.1.4/gems/bundler-1.7.9/lib/bundler/setup.rb:17:in `<top (required)>'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'

I wasn't able to do a gem install sqlite3, so I did brew install sqlite3

When I try to do gem install sqlite3 -v '1.3.10 I get the following:

Building native extensions.  This could take a while...
ERROR:  Error installing sqlite3:
    ERROR: Failed to build gem native extension.

    /Users/alborz/.rvm/rubies/ruby-2.1.4/bin/ruby -r ./siteconf20141214-94534-zh0i03.rb 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/alborz/.rvm/rubies/ruby-2.1.4/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
/Users/alborz/.rvm/rubies/ruby-2.1.4/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/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:587:in `try_cpp'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:1120:in `block in find_header'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'
    from /Users/alborz/.rvm/rubies/ruby-2.1.4/lib/ruby/2.1.0/mkmf.rb:1119:in `find_header'
    from extconf.rb:30:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in /Users/alborz/.rvm/gems/ruby-2.1.4/gems/sqlite3-1.3.10 for inspection.
Results logged to /Users/alborz/.rvm/gems/ruby-2.1.4/extensions/x86_64-darwin-13/2.1.0-static/sqlite3-1.3.10/gem_make.out

Thanks in advance!!

1 Answer

Joshua Shroy
Joshua Shroy
9,943 Points

Looks like an issue with sqlite.

First check if you have sqlite gem by running gem list. If it's not installed, install it with gem install sqlite3 -- --with-sqlite3-dir=/opt/local

If that doesn't work try running xcode-select --install, then running rails.

alborz
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
alborz
Full Stack JavaScript Techdegree Graduate 30,885 Points
alborz
.a{fill-rule:evenodd;}techdegree seal-36
alborz
Full Stack JavaScript Techdegree Graduate 30,885 Points

Unfortunately after installing xcode I tried installing sqlite but that didn't work again, and rails new testapp didn't even create ANY files this time... I get:

alborzs-mbp:Desktop alborz$ gem install sqlite3 -- --with-sqlite3-dir=/opt/local
<internal:gem_prelude>:1:in `require': cannot load such file -- rubygems.rb (LoadError)
    from <internal:gem_prelude>:1:in `<compiled>'
alborzs-mbp:Desktop alborz$ rails new testapp
<internal:gem_prelude>:1:in `require': cannot load such file -- rubygems.rb (LoadError)
    from <internal:gem_prelude>:1:in `<compiled>'
alborzs-mbp:Desktop alborz$ rails new testappxcode-select --install
<internal:gem_prelude>:1:in `require': cannot load such file -- rubygems.rb (LoadError)
    from <internal:gem_prelude>:1:in `<compiled>'
alborzs-mbp:Desktop alborz$ xcode-select --install
xcode-select: note: install requested for command line developer tools
alborzs-mbp:Desktop alborz$
Joshua Shroy
Joshua Shroy
9,943 Points

I recently switched to mac and had a similar issue so I'm determined to help you through this :).

Are you running the latest OSX? Also, what do you get when running which -a ruby and ruby -v?

alborz
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
alborz
Full Stack JavaScript Techdegree Graduate 30,885 Points
alborz
.a{fill-rule:evenodd;}techdegree seal-36
alborz
Full Stack JavaScript Techdegree Graduate 30,885 Points

Thank you. :)

I am actually running OS X Mavericks 10.9.5 -- I reinstalled this OS today.

Here's what I get when I run the commands which -a ruby:

/Users/alborz/.rvm/rubies/ruby-2.1.1/bin/ruby 
/Users/alborz/.rbenv/shims/ruby
/Users/alborz/.rbenv/shims/ruby
/Users/alborz/.rbenv/shims/ruby
/usr/bin/ruby

And when I run ruby -v:

ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-darwin12.0]

UPDATE:

For some reason now the output has changed.

When I run which -a ruby I get:

/Users/alborz/.rvm/rubies/ruby-2.1.4/bin/ruby 
/Users/alborz/.rbenv/shims/ruby
/Users/alborz/.rbenv/shims/ruby
/Users/alborz/.rbenv/shims/ruby
/usr/bin/ruby

And when I run ruby -v I get:

ruby 2.1.4p265 (2014-10-27 revision 48166) [x86_64-darwin13.0]

Joshua Shroy
Joshua Shroy
9,943 Points

With the original error, it shows .rvm as part of the directory and yet your recent output shows .rbenv. Unfortunately, ruby can only run one Version Manager. Try uninstalling the one you don't want and try again.

Joshua Shroy
Joshua Shroy
9,943 Points

Great! Glad that worked!