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

I experienced the same error in the process of installing AFNI. Installing PyQt, as suggested here, fixed the issue resulting from OSX 10.11 compatibility.

brew install pyqt

Answer 2

Try:

brew tap homebrew/dupes

See: https://github.com/josegonzalez/homebrew-php/pull/219

Answer 3

In my case I had

dyld: Library not loaded: /usr/local/opt/python/Frameworks/Python.framework/Versions/3.7/Python
  Referenced from: /usr/local/Cellar/macvim/8.2-162/MacVim.app/Contents/MacOS/Vim
  Reason: image not found

brew unlink python && brew link python and boom, fixed.

Answer 4

Try to re-install libtool by:

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

If that doesn't help, try removing libtool completely, and then retry the steps above:

brew uninstall libtool

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If it still doesn't work after trying the steps above, check to see if you have the DYLD_FALLBACK_LIBRARY_PATH variable defined somewhere on the system (e.g. ~/.profile) and try unsetting it before trying the steps above again.

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Other commands which could be useful for identifying the issue:

$ libtool --version
$ whereis libtool
$ set | grep DYLD_FALLBACK_LIBRARY_PATH
$ echo $DYLD_FALLBACK_LIBRARY_PATH

Answer 5

None of them work I personally reinstalled Watchman like so:

brew uninstall watchman
brew reinstall watchman

Answer 6

if you have an error about pcre like this :

dyld: Library not loaded: /usr/local/opt/pcre/lib/libpcre.1.dylib
  Referenced from: /usr/local/Cellar/watchman/4.7.0/libexec/bin/watchman
  Reason: image not found
Abort trap: 6

you need to link pcre.

brew link --overwrite pcre