Fresh Install of Rvm in Ubuntu Isn't Letting Me Install Gems (Zlib Error)

Fresh install of RVM in Ubuntu isn't letting me install gems (zlib error)

Run rvm notes and make sure to use apt-get to install the things RVM tells you to. It (something along the lines of zlib1g-devel will be one of them).

For Ubuntu, it should be something like this:

/usr/bin/apt-get install build-essential bison openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev

You might have to recompile your 1.9.2 afterwards (not 100% sure of that).

After installing ruby gems, running the new gem returns Could not find errors

Seems the missing link was

$ rvm use ruby-1.9.3-p125 --default

Seems to have fixed it.

PS: Thanks for looking at this. For your entertainment, if you didn't see it on HN yet (it's python, but still a good chuckle): https://gist.github.com/289467

Ubuntu rails install fails on zlib

If you come across this question trying to install Ruby using Ruby Version Manager (RVM) on Ubuntu 10.04 then there are instructions on installing zlib on the rvm web site http://rvm.beginrescueend.com/packages/zlib/

The steps are:

rvm pkg install zlib

(or
rvm package install zlib if you get "ERROR: Unrecognized command line argument: 'pkg'" - older versions of rvm used the verb 'package' instead)

then

rvm remove 1.9.1
rvm install 1.9.1

RVM won't use the version of Ruby I tell it to use in new shells

rvm remove ruby-2.0.0-p648
rvm remove ruby-2.3.0

restart the bash

rvm --default use ruby-2.3.3

and it work

troubles with RVM and OpenSSL

Try this:

rvm get head
rvm pkg remove
rvm requirements run  # if brew gives you warnings about formulas to install, run "brew install" for each before moving on.

rvm reinstall [the version you need (i.e: 2.0.0)]

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