gem yank fails "The version does not exist"

Question

I'm trying to replace a bad version of my gem on rubygems.com, but yanking fails. You can see at https://rubygems.org/gems/v2gpti that the gem does exist at v0.2. Why is this yank failing?

 ~ $ sudo gem yank v2gpti -v0.2
Yanking gem from https://rubygems.org...
The version 0.2 does not exist.
 ~ $ 

Answer 1

Since you specified a platform for the gem, you also need to specify it when yanking:

$ gem yank v2gpti -v0.2 -​-platform universal-darwin-13

See http://guides.rubygems.org/command-reference/#gem-yank.