Brew doctor: dyld: Library not loaded & Error: No available formula for zlib

Question

When I brew doctor I get the following errors:

dyld: Library not loaded: /usr/lib/libltdl.7.dylib
  Referenced from: /usr/local/bin/php
  Reason         


        

Answer 1

xcode-select --install
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew install pcre
brew install libtool

that's it.

Answer 2

First :

brew uninstall libffi

Then :

brew install libffi

Answer 3

In my case I solve it with this link's file:

ln -s /usr/local/Cellar/jpeg/8d/lib/libjpeg.8.dylib /usr/local/opt/jpeg/lib/libjpeg.8.dyli

Answer 4

The response from kenorb is what worked for me + a little extra for safe measure: brew update freetype didn't have symlinks so: brew link freetype various other solutions I tried:

brew remove imagemagick
brew link jpeg libpng
brew install imagemagick
brew install libtiff
brew uninstall libtool
brew reinstall libtool --universal && brew unlink libtool && brew link libtool

There's a good chance that this wasn't all necessary if I had found

brew uninstall libtool
brew reinstall libtool --universal && brew unlink libtool && brew link libtool

first. But I thought I would post my full process in case anyone runs into issues

Answer 5

For me, I needed to fix XQuartz as brew doctor asked me too:

Warning: Your XQuartz (2.7.6) is outdated Please install XQuartz 2.7.8: https://xquartz.macosforge.org

It worked after that.

Answer 6

For me it works with:

sudo ln -s /usr/local/Cellar/libtool/2.4.2/lib/libltdl.7.dylib /usr/local/lib/libltdl.7.dylib