Error installing rails 4 in mac - ruby-on-rails

I am trying to set up rails in my mac(Yosemite) machine. But when I do
gem install rails
I get the following error. Please help.
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
/Users/Paa/.rvm/rubies/ruby-1.9.3-p547/bin/ruby extconf.rb
creating Makefile
make clean
make
compiling generator.c
make: /usr/local/opt/gcc46/bin/gcc-4.6: No such file or directory
make: *** [generator.o] Error 1
make failed, exit code 2
Gem files will remain installed in /Users/Paa/.rvm/gems/ruby-1.9.3-p547/gems/json-1.8.2 for inspection.
Results logged to /Users/Paa/.rvm/gems/ruby-1.9.3-p547/extensions/x86_64-darwin-13/1.9.1/json-1.8.2/gem_make.out
What am I missing here.??

I think rvm might be trying to use gcc 4.6, which doesn't work properly with rvm. I believe you can:
Uninstall gcc 4.6 (brew rm gcc46)
Pull the latest rvm (rvm get stable)
Retry gem install rails

Related

While installing http_parser.rb ERROR: Failed to build gem native extension

This error occurs when I try to install http_parser using gem:
dongl_000#LENNY ~/ava-home (master)
$ gem install http_parser.rb -v '0.6.0'
Building native extensions. This could take a while...
ERROR: Error installing http_parser.rb:
ERROR: Failed to build gem native extension.
c:/Ruby22-x64/bin/ruby.exe -r ./siteconf20160217-15056-1hoiyfc.rb extconf.rb
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
generating ruby_http_parser-x64-mingw32.def
make: *** No rule to make target '/c/Ruby22-x64/include/ruby-2.2.0/ruby.h', need
ed by 'ruby_http_parser.o'. Stop.
make failed, exit code 2
Gem files will remain installed in c:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/http_p
arser.rb-0.6.0 for inspection.
Results logged to c:/Ruby22-x64/lib/ruby/gems/2.2.0/extensions/x64-mingw32/2.2.0
/http_parser.rb-0.6.0/gem_make.out
How can I resolve this issue?
Versions
ruby : 2.2.1
rubyGem : 2.4.5
I was going through this very same issue.
Looked up the Git Repository for the Gem (HTTP_Parser) and found out the reason for my problem:
HTTP_Parser currently doesn't not support a Path with spaces
So I renamed my path and solved it.
To resolve attempt to add the devkit to Ruby like this:
Install Ruby+DevKit from RubyInstaller: Ruby Window Installers
Downloads
Check the "ridk install" checkbox at the end of the installer.
When RIDK runs, pick option 3 to install both MSYS and MINGW dev tools (make is provided with the MINGW stuff).
Open a fresh console (to get fresh environment variables), and rerun your gem or bundle command...and hope for the best.

Error installing json on windows 8.1

I have installed rails 4.2.3 and ruby 2.2.2p95 on windows 8.1 x64 . When I try to run "bundle install" the installation fails because of json -v 1.8.3. I already have json version 1.8.1 installed. When I run rubygems update command it does not get updated. If I try to individually run gem install json -v 1.8.3 or gem install json --platform=ruby --version=1.8.3 I get the following error.
ERROR: While executing gem ... (OptionParser::InvalidArgument)
invalid argument: -platform=ruby
C:\>gem install json --platform=ruby --version=1.8.3
Building native extensions. This could take a while...
ERROR: Error installing json:
ERROR: Failed to build gem native extension.
C:/Ruby22-x64/bin/ruby.exe -r ./siteconf20150719-4308-1m86usl.rb extconf.rb
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
generating generator-x64-mingw32.def
compiling generator.c
make: x86_64-w64-mingw32-gcc: Command not found
make: *** [generator.o] Error 127
make failed, exit code 2
Gem files will remain installed in C:/Ruby22- x64/lib/ruby/gems/2.2.0/gems/json-1
.8.3 for inspection.
Results logged to C:/Ruby22-x64/lib/ruby/gems/2.2.0/extensions/x64-mingw32/2.2.0
/json-1.8.3/gem_make.out
Looks like you might have the 32-bit DevKit installed instead. Try uninstalling the DevKit you have and downloading and re-installing the latest 64-bit one. For more detail check out this similar answer:
https://stackoverflow.com/a/16579088/4034665
Try this gem install --verbose json -v 1.8.3. This should install the gem.

ERROR: Failed to build gem native extension when installing rails

I'm on windows and trying to install rails. but I get the following error message:
Z:\AlexL\My Documents\rails>gem install rails
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
C:/Ruby193/bin/ruby.exe -r ./siteconf20150211-3312-5ie7vd.rb extconf.rb
creating Makefile
make clean
Makefile:165: *** target pattern contains no `%'. Stop.
make
Makefile:165: *** target pattern contains no `%'. Stop.
make failed, exit code 2
Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/json-1.8.
2 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/extensions/x86-mingw32/1.9.1/js
on-1.8.2/gem_make.out
Ruby version is:
ruby 1.9.3p484
I've got this devkit installed DevKit-tdm-32-4.5.2-20111229-1559-sfx
in this folder:
C:\Ruby193\DevKit\
Not sure what else is wrong?
Looks the same as the issue being discussed here.
Apparently, there is a problem with Ruby 1.9.3 and newer RubyGems versions on Windows machines. Their quick-fix solution was to downgrade to an earlier version of RubyGems.
gem update --system 1.8.29
Once you have done that, confirm that gems -v returns 1.8.29 and try your command again.
Otherwise, you can upgrade to Ruby 2.X, which should also resolve this problem.

Error while typing "gem install rails"

Can anybody please help me to resolve this error.Actually i am trying to install ruby-1.9.3 and rails-4 in windows-XP 32 bit.When i followed the below steps and got some error.
Steps:
1-I installed ruby version-1.9.3
2-I installed the proper devkit and gave path(C:\Ruby193\devkit) to extract it.
3-I typed gem update --system in CMD.
4-When i typed the command gem install rails in cmd it gave some error.
Error:
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
C:/Ruby193/bin/ruby.exe -r ./siteconf20141229-2792-pk1no5.rb extconf.rb
creating Makefile
make clean
Makefile:165: *** target pattern contains no `%'. Stop.
make
Makefile:165: *** target pattern contains no `%'. Stop.
make failed, exit code 2
Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/json-1.8.
1 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/extensions/x86-mingw32/1.9.1/js
on-1.8.1/gem_make.out
Please help me to resolve this error.Thanks

Rails – Bundle install problems with json

I'm running OS X Mavericks, with Rails 3.2.12. When I try to do rails new project, it gets stuck at bundle install.
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/ruby-1.9.3-p392/bin/ruby extconf.rb
creating Makefile
make
compiling generator.c
make: gcc-4.2: No such file or directory
make: *** [generator.o] Error 1
Gem files will remain installed in /usr/local/rvm/gems/ruby-1.9.3-p392/gems/json-1.8.1 for inspection.
Results logged to /usr/local/rvm/gems/ruby-1.9.3-p392/gems/json-1.8.1/ext/json/ext/generator/gem_make.out
An error occurred while installing json (1.8.1), and Bundler cannot continue.
Make sure that `gem install json -v '1.8.1'` succeeds before bundling.
I get the same error when I do 'gem install json....' as it suggests. I've installed the latest version of Xcode, with the command line tools. When I do:
which gcc
I get:
/usr/bin/gcc
I'm new to all this stuff really, so please try to keep things simple.
So, prior to XCode 5, there was a gcc-4.2 binary, which got removed in the upgrade.
I found this tutorial helpful in getting gcc-4.2 back and running with ruby. It assumes that you're using homebrew to manage packages on your Mac.

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