Error: rbenv install 3.3.4 - ruby-build: definition not found: 3.3.4

Situation

When trying installing Ruby 3.3.4 through rbenv on PopOs or any Ubuntu-based linux distribution

rbenv install 3.3.4

We get the following message:

ruby-build: definition not found: 3.3.4

Issue

Based on the error message, the issue occurs because Ruby 3.3.4 is not yet available in the version list managed by ruby-build.

Solution

Update ruby-build

git -C $(rbenv root)/plugins/ruby-build pull

Output

Check for the specific Ruby Version

rbenv install --list-all | grep 3.3.4

Output

Install the specific version

rbenv install 3.3.4

Output

Confirm new version

ruby -v
rbenv version

Output

Rehash

rbenv rehash

Done

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