[Solved] You run rbenv local 3.0.0 but ruby -v still shows Ruby 2.7.0. What is the most likely problem? — Ans: Your shell environment is not configured to use rbenv | Ruby

Ruby - Ecosystem and Best Practices

You run rbenv local 3.0.0 but ruby -v still shows Ruby 2.7.0. What is the most likely problem?

AYou forgot to run <code>rbenv rehash</code> after setting local version

BYour shell environment is not configured to use rbenv

CThe <code>.ruby-version</code> file is missing or incorrect

DRuby 3.0.0 is not installed

Step-by-Step Solution

Solution:

Step 1: Check rbenv environment setup
If ruby -v does not reflect the local version, the shell might not be using rbenv's shims.
Step 2: Confirm shell configuration
Without proper PATH and initialization, rbenv cannot override Ruby version, so the system Ruby remains active.
Final Answer:
Your shell environment is not configured to use rbenv -> Option B
Quick Check:
Shell config missing = rbenv version ignored [OK]

Quick Trick: Ensure rbenv is initialized in shell to activate versions [OK]

Common Mistakes:

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You run rbenv local 3.0.0 but ruby -v still shows Ruby 2.7.0. What is the most likely problem?