[%] Jekyll 테마 쓰려는데 오류... 어캐함.

[dafasdf(121.139)]

You have already activated rake 13.0.0, but your Gemfile requires rake 12.3.3. Prepending `bundle exec` to your command may solve this. (Gem::LoadError)

이러고 뜨는데. 12.3.3 설치하면 또 13.0.0 필요하다고 하고, 둘다 설치된 상태면 또 오류뜨고. 어떻게 해야해?

[익명(limit4150)]

You have already activated rake 13.0.0, but your Gemfile requires rake 12.3.3. Prepending `bundle exec` to your command may solve this. (Gem::LoadError)