Getting cannot load such file -- zlib while installing ruby 2.2.5

[aryanagarwal15]

Description

Getting this error
cannot load such file -- zlib

while running
rvm install 2.2.5 --rubygems 2.7.6

have tried various fixes mentioned in issues which include
rvm reinstall 2.2.5 --with-zlib-dir=$(brew --prefix zlib) --rubygems 2.7.6
&
rvm pkg install zlib

error is coming while ruby-2.2.5 - #installing rubygems-2.7.6 - please wait

Steps to reproduce

run rvm install 2.2.5 --rubygems 2.7.6

Expected behavior

install ruby 2.2.5

Actual behavior

• command
• config.log - only for issues with install
• make.log - only for issues with install

Debug mode:

• command
• config.log - only for issues with install
• make.log - only for issues with install

Environment info

`ruby-2.7.0:

system:
uname: "Darwin Aryans-MacBook-Pro.local 19.6.0 Darwin Kernel Version 19.6.0: Thu Jun 18 20:49:00 PDT 2020; root:xnu-6153.141.1~1/RELEASE_X86_64 x86_64"
name: "OSX"
version: "10.15"
architecture: "x86_64"
bash: "/bin/bash => GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin19)"
zsh: "/bin/zsh => zsh 5.7.1 (x86_64-apple-darwin19.0)"
remote_path: "osx/10.15/x86_64"
xcode: "12.0"

rvm:
version: "1.29.10 (latest)"
updated: "2 hours 20 minutes 42 seconds ago"
path: "/Users/aryan/.rvm"
autolibs: "[enable] Allow RVM to use package manager if found, install missing dependencies, install package manager (only OS X)."

ruby:
interpreter: "ruby"
version: "2.7.0p0"
date: "2019-12-25"
platform: "x86_64-darwin19"
patchlevel: "2019-12-25 revision 647ee6f091"
full_version: "ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-darwin19]"

homes:
gem: "/Users/aryan/.rvm/gems/ruby-2.7.0"
ruby: "/Users/aryan/.rvm/rubies/ruby-2.7.0"

binaries:
ruby: "/Users/aryan/.rvm/rubies/ruby-2.7.0/bin/ruby"
irb: "/Users/aryan/.rvm/rubies/ruby-2.7.0/bin/irb"
gem: "/Users/aryan/.rvm/rubies/ruby-2.7.0/bin/gem"
rake: "/Users/aryan/.rvm/rubies/ruby-2.7.0/bin/rake"

environment:
PATH: "/Users/aryan/.rvm/gems/ruby-2.7.0/bin:/Users/aryan/.rvm/gems/ruby-2.7.0@global/bin:/Users/aryan/.rvm/rubies/ruby-2.7.0/bin:/usr/local/opt/openssl@1.1/bin:/Users/aryan/.pyenv/shims:/Users/aryan/.pyenv/bin:/usr/local/opt/mysql@5.6/bin:/Users/aryan/.gem/ruby/2.7.0/bin:/Users/aryan/.nvm/versions/node/v14.7.0/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Applications/Postgres.app/Contents/Versions/latest/bin:/opt/nginx/sbin/:/Users/aryan/.rvm/bin"
GEM_HOME: "/Users/aryan/.rvm/gems/ruby-2.7.0"
GEM_PATH: "/Users/aryan/.rvm/gems/ruby-2.7.0:/Users/aryan/.rvm/gems/ruby-2.7.0@global"
MY_RUBY_HOME: "/Users/aryan/.rvm/rubies/ruby-2.7.0"
IRBRC: "/Users/aryan/.rvm/rubies/ruby-2.7.0/.irbrc"
RUBYOPT: ""
gemset: ""`

[raelgc]

Hi @aryanagarwal15 and thanks for reporting this issue.

Can you, please, fill the other missing info, so we can help you?

[aryanagarwal15]

@raelgc I've added my environment info, is anything else needed to be added?

[uestcsp]

me too, This problem has bothered me for weeks....... life is so hard 😂

[aryanagarwal15]

I was able to find a solution for this issue. On 17th September 2020 Apple released Command-Line-Tools 12 which breaks rvm installation. To solve this I had to revert to Command-line-Tools 11.5

To check if this is the error with your machine run clang --version

If the version is 12 then you must downgrade.

Process:

1. I read you cannot install it well without uninstalling completely previous installs, so I did sudo rm -rf /Library/Developer/CommandLineTools
2. I downloaded the command line Tools for XCode version 11.5 (I am using Catalina 10.15.6), and the next version, 12, is for Big Sur that will come out next month. Here is the link: Command line tools for Xcode Installation [You must have Apple developer(Free) account to access this]
3. When the installation finished, I restarted the computer
4. I checked the path of these tools: Xcode-select --print-path
5. Finally, I ran sudo xcode-select -switch /Library/Developer/CommandLineTools since it was not the correct path.

Original Comment explaining this: rbenv/ruby-build#1473 (comment)

[uestcsp]

yes, it's the XCode issuse