Cannot get ffmpeg to work after installing from homebrew

Question

I installed ffmpeg through homebrew but when I try to run it, even just typing in ffmpeg I get the following error message:

dyld: Library not loaded: /usr/local/lib/liblzma.5.dylib
  Referenced from: /usr/local/bin/ffmpeg
  Reason: Incompatible library version: ffmpeg requires version 8.0.0 or later, but liblzma.5.dylib provides version 6.0.0
Trace/BPT trap: 5

I've tried running brew update and brew upgrade but that didn't change anything. Running brew doctor the only error I get is:

Warning: You have a curlrc file
If you have trouble downloading packages with Homebrew, then maybe this
is the problem? If the following command doesn't work, then try removing
your curlrc:
  curl http://github.com

New at doing things in the terminal, what to do next?

Answer 1

I got it to work by running brew search liblzma which told me lzma is now part of the xz formula.

So then I ran brew install xz and tried running ffmpeg again and it works now!

Answer 2

What Worked Today

I'm running OSX Mojave 10.14.5 and got the dyld: Library not loaded: /usr/local/lib/liblzma.5.dylib complaint.

• brew install xz did not work
• Reinstall worked like a boss

brew uninstall --force ffmpeg && brew install ffmpeg