On 05/31/2018 04:52 PM, John Pilkington wrote: > File not found: > /builddir/build/BUILDROOT/mythtv-30.Pre.650.g9dee6dd8e7-100.fc27.x86_64/usr/bin/mythffserver They have removed the ffserver program from ffmpeg with version 4.0 See https://www.ffmpeg.org/ v4.0 release notes - "Removed the ffserver program" Peter