Your Ruby version is 3.0.0, but your Gemfile specified 2.7.4

  1. Update the Gemfile with the correct Ruby version:
# Gemfile
source 'https://rubygems.org'

ruby '3.0.0'

# Add your other gems below this line
  1. Run the following command to apply the changes:
bundle update --ruby
  1. If there are any gem dependencies specified in the Gemfile.lock, update them as well:
bundle install