"WGif encountered an error transcoding the video." at any video

[shanginn]

Hello there! It's a great idea to do that tool, thank you :)
But sadly it's not working in Fedora 22. I recieve WGif encountered an error transcoding the video. at any. What can I do to debug this?
PS: wgif "https://www.youtube.com/watch?v=1A78yTvIY1k" bjork.gif -s 00:03:30 -d 2.2 -w 400 didn't work too. And any video, and without parametrs too.

Fedora 22 x86_64
wgif 0.5.4
rmagick 2.15.4
ImageMagick 6.8.8.10-9
ImageMagick-devel 6.8.8.10-9

Thank you!

[xywei]

Same thing happens in Arch. It also complains
"[DEPRECATION] requiring "RMagick" is deprecated. Use "rmagick" instead"
before throwing the error.

[acfletch53]

Same issue on OSX. I tried different arguments and the example command and it's giving the same transcoding error that shanginn posted.