Troubleshooting rbenv to Use Ruby 2.6.6

Описание: Discover how to resolve issues with `rbenv` not recognizing Ruby `2.6.6`. A step-by-step guide for smooth Ruby installation and management.
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This video is based on the question https://stackoverflow.com/q/63589029/ asked by the user 'Brian Piercy' ( https://stackoverflow.com/u/280069/ ) and on the answer https://stackoverflow.com/a/63590443/ provided by the user 'Run' ( https://stackoverflow.com/u/5663576/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting rbenv to Use Ruby 2.6.6

If you're a Ruby developer, you might run into some obstacles while trying to set up your environment. One common issue arises when you're trying to use a specific version of Ruby but rbenv can't seem to find it. This can be frustrating, especially when you need a particular version to avoid conflicts and ensure that your applications run smoothly. In this post, we will address how to use Ruby 2.6.6 when rbenv can't find it.

Understanding the Problem

You may have recently created a new Rails application using Ruby 2.7.1, only to be met with a slew of warnings related to "keyword parameters." Seeking to use Ruby 2.6.6 instead, you might have found that running the command to list available Ruby versions (rbenv install --list) doesn't display versions beyond 2.4.0. This can severely limit your options and leave you puzzled on how to proceed.

Steps to Resolve the Issue

Here’s a straightforward plan to get rbenv to recognize Ruby 2.6.6:

Step 1: Check Your ruby-build Plugin Version

Before proceeding, you should ensure that you have the latest version of the ruby-build plugin, as this will directly affect your ability to install newer Ruby versions.

Open your terminal.

Navigate to the ruby-build plugin directory by running:

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Check the log to confirm the current version:

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Step 2: Update rbenv

If the ~/.rbenv/plugins directory does not exist, it may indicate that your version of rbenv is outdated. You’ll want to bring it up to date.

Navigate to your rbenv directory:

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Pull the latest changes from the repository:

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Step 3: Install the ruby-build Plugin

If you determined that you needed to install the ruby-build plugin, here’s how you can do it:

Clone the ruby-build repository into your rbenv/plugins directory:

[[See Video to Reveal this Text or Code Snippet]]

Important Note

After following these steps, you should now be able to install Ruby versions that were previously unavailable to you. You can now check if Ruby 2.6.6 can be installed with:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By checking and updating your ruby-build plugin and rbenv, you can overcome the issue of rbenv not recognizing certain Ruby versions like 2.6.6. This approach ensures that your development environment is up to date and equipped to handle any Ruby version you may need for your projects.

With these steps, you’re now better prepared to manage your Ruby versions and avoid the common pitfalls associated with version discrepancies. Happy coding!