Emacs stop working in Mac OSX Catalina. How to fix?

I keep getting this error:

> emacs dyld: Library not loaded:
> /usr/local/opt/libffi/lib/libffi.6.dylib Referenced from:
> /usr/local/opt/p11-kit/lib/libp11-kit.0.dylib Reason: image not
> found Abort trap: 6

I tried to reinstall with brew reinstall emacs, brew install libffi, brew link libffi. Nothing helps.

I had a similar problem after upgrading to macOS Catalina 10.15.4. I got this error:

$ emacs file.txt
dyld: Library not loaded: /usr/local/opt/libffi/lib/libffi.6.dylib
  Referenced from: /usr/local/opt/p11-kit/lib/libp11-kit.0.dylib
  Reason: image not found

Reinstalling emacs with brew solved the problem.

brew reinstall emacs

I had a similar problem installing from source,

brew reinstall p11-kit

was the fix for me

Same problem but different issues:

dyld[5893]: Library not loaded: /usr/local/opt/libffi/lib/libffi.7.dylib
  Referenced from: /usr/local/Cellar/php@7.4/7.4.23/bin/php
  Reason: tried: '/usr/local/opt/libffi/lib/libffi.7.dylib' (no such file), '/usr/local/lib/libffi.7.dylib' (no such file), '/usr/lib/libffi.7.dylib' (no such file), '/usr/local/Cellar/libffi/3.4.2/lib/libffi.7.dylib' (no such file), '/usr/local/lib/libffi.7.dylib' (no such file), '/usr/lib/libffi.7.dylib' (no such file)

It works for me:

brew reinstall libffi

Faced same issue while using scrapy shell command

Solved this using

pip3 install --force-reinstall cryptography on Mac OS