Saturday, January 21, 2012
On Sat, Jan 21, 2012 at 10:39 PM, Felipe Pieretti Umpierre <lists@ruby-forum.com> wrote:
-- Hello, I'm trying to install the rails on ubuntu 11.10, but when I put
the command
felipe@Felipe:~/Downloads/rubygems-1.8.15$ sudo gem install rails
--no-r1 --no-rdoc
ERROR: Loading command: install (LoadError)
no such file to load -- zlib
ERROR: While executing gem ... (NameError)
uninitialized constant Gem::Commands::InstallCommand
felipe@Felipe:~/Downloads/rubygems-1.8.15$
it return this error, how can I install correctly.
1) The default first answer to these questions is, "use rvm" (really !).
E.g. for Ubuntu 11.10, I wrote a detailed log of doing it from scratch
(and there are many others if you Google):
Note that you will NOT need to do "sudo" with rvm, It is a local install
that you could alway wipe out and start over etc. if you are experimenting ...
(you could even make a separate "ror" user and do rvm there,
just to practice without risk.
2) If you really want to install system with sudo , than the specific problem
you face is probably that you miss a number -dev libraries.
Probably
$ sudo apt-get install zlib1g zlib1g-dev
will get you out of this one and then you will probably hit the next error ...
(I recently installed on a different Ubuntu 11.10 without rvm, it was a lot
harder and the write-up is here:
Not advised unless you are more experienced).
HTH,
Peter
Peter Vandenabeele
http://twitter.com/peter_v --
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