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RubyGem version error: rack(1.0.0 not ~> 1.0.1)

I was working on a rails project on my laptop and pushing code to github. Now I cloned the project on my desktop.

when running:

rake db:migrate

I get the following error:

rake aborted!
Ruby开发者_JAVA技巧Gem version error: rack(1.0.0 not ~> 1.0.1)

(See full trace by running task with --trace)

Before this error I had to run the following commands:

sudo gem install -v=2.3.5 rails
sudo gem update rack


sudo gem install -v 1.0.1 rack
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