Tried to install pg gem I got the next error:
alex@ubuntu:~/RubymineProjects/Tiger Skills$ gem install pg
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions into the /var/lib/gems/1.9.1 directory.
alex@ubuntu:~/RubymineProjects/Tiger Skills$ sudo gem install pg
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from extconf.rb:2:in `<main>'
Gem files will remain installed in /var/lib/gems/1.9.1/gems/pg-0.15.1 for inspection.
Results logged to /var/lib/gems/1.9.1/gems/pg-0.15.1/ext/gem_make.out
gem_make.out file:
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from extconf.rb:2:in `<main>'
Already tryed to solve using
$ sudo apt-get install postgresql-client libpq5 libpq-dev
then:
$ sudo gem install pg
那是因为您没有为目录设置写权限,请尝试:
chmod +777 /var/lib/gems/1.9.1
这有助于我:
sudo apt-get install rails
You need to install the -dev part of the Ruby package. Something like:
sudo apt-get install ruby1.9-dev
should give you the parts of Ruby necessary to compile binary extensions.
Good luck!
I got almost the same problem.
I use this to solve it.
$rvmsudo gem install pg
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