Ruby 1.8.7 Mac OS Bigsur __rvm_make -j8 | Error running ‘__rvm_make -j16’

by
  1. Right-click Terminal from the Application/Utility folder, Get Info, tick the “Open using Rosetta” box.
  2. Uninstall Homebrew
1) /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall.sh)"
2) rm -rf /opt/homebrew/*
3) sudo rm -rf /opt/homebrew
  1. Reinstall Homebrew
    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
  2. Restart terminal
  3. Check Homebrew is working fine: brew doctor
  4. Reinstall openssl: brew install openssl
  5. Install Ruby: rvm install 2.5.3 Or any version

Solution for: Ruby 1.8.7 Mac OS Bigsur __rvm_make -j8′
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