'Rails `require': cannot load such file -- matrix

after updating to ruby 3.1.2 and Rails 7.0.2.3

getting following error while starting rails application:

`require': cannot load such file -- matrix (LoadError)

what could be the possible solution, thanks in advance.

Solution 1:^[1]

I came onto this issue as well when upgrading Rails 6->7 and Ruby 3.0.0->3.1.2.

For my case the issue was related to Capybara gem. Version 3.35.3 assumed it is installed by default with Ruby. When I upgraded the Capybara to version 3.37.1 then matrix gem was automatically installed as well and the issue was resolved.

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'Rails `require': cannot load such file -- matrix

Solution 1:[1]

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