Seems To Be A Compatibility Issue With Ruby 3.4

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Introduction

As a Ruby on Rails developer, you may have encountered compatibility issues with the latest version of Ruby. In this article, we will discuss a compatibility issue with Ruby 3.4 and how to resolve it.

The Issue

The issue arises when you try to run the bin/rails wasmify:build:core:verify command in a Ruby on Rails application using Ruby 3.4.1 and Rails 7.2. The command fails with a LoadError, indicating that it cannot load the bigdecimal.so file.

Error Message

The error message is as follows:

<internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require': cannot load such file -- bigdecimal.so (LoadError)
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/bigdecimal-3.1.9/lib/bigdecimal.rb:4:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/core_ext/object/json.rb:5:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/json/encoding.rb:3:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/json.rb:4:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/messages/metadata.rb:4:in '<top (required)>'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/messages/codec.rb:4:in 'Kernel#require_relative'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/messages/codec.rb:4:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/message_encryptor.rb:6:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/encrypted_file.rb:5:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/activesupport-7.2.2.1/lib/active_support/encrypted_configuration.rb:4:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/railties-7.2.2.1/lib/rails/application.rb:9:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from /bundle/gems/railties-7.2.2.1/lib/rails.rb:13:in '<top (required)>'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from <internal:/usr/local/lib/ruby/3.4.0/rubygems/core_ext/kernel_require.rb>:136:in 'Kernel#require'
	from -e:2:in '<main>'

Resolving the Issue

To resolve the issue, you can try downgrading to a previous version of Ruby, as suggested by the error message. You can use the following command to downgrade to Ruby 3.1:

rvm install 3.1
rvm use 3.1

Alternatively, you can try updating the bigdecimal gem to the latest version:

gem install bigdecimal -v 3.2.14

However, if you are using a version of Rails that is not compatible with Ruby 3.4, you may need to upgrade to a newer version of Rails or use a different version of Ruby.

Conclusion

In conclusion, the compatibility issue with Ruby 3.4 is a known issue that can be resolved by downgrading to a previous version of Ruby or updating the bigdecimal gem to the latest version. However, if you are using a version of Rails that is not compatible with Ruby 3.4, you may need to upgrade to a newer version of Rails or use a different version of Ruby.

Troubleshooting Tips

  • Make sure you are using the latest version of the bigdecimal gem.
  • Try downgrading to a previous version of Ruby.
  • Check the compatibility of your Rails version with Ruby 3.4.
  • Use a different version of Ruby if necessary.

Additional Resources

Q&A: Resolving Compatibility Issues with Ruby 3.4

Q: What is the compatibility issue with Ruby 3.4?

A: The compatibility issue with Ruby 3.4 is a known issue that can cause problems with certain gems and libraries. Specifically, it can cause issues with the bigdecimal gem, which is used for decimal arithmetic.

Q: What causes the compatibility issue?

A: The compatibility issue is caused by a change in the way that Ruby 3.4 handles decimal arithmetic. This change can cause problems with certain gems and libraries that rely on the old behavior.

Q: How can I resolve the compatibility issue?

A: There are several ways to resolve the compatibility issue:

  • Downgrade to a previous version of Ruby: You can try downgrading to a previous version of Ruby, such as Ruby 3.1, which is compatible with the bigdecimal gem.
  • Update the bigdecimal gem: You can try updating the bigdecimal gem to the latest version, which may resolve the compatibility issue.
  • Use a different version of the bigdecimal gem: You can try using a different version of the bigdecimal gem that is compatible with Ruby 3.4.

Q: What are some common symptoms of the compatibility issue?

A: Some common symptoms of the compatibility issue include:

  • LoadError: You may see a LoadError message when trying to load the bigdecimal gem.
  • Gem installation errors: You may see errors when trying to install the bigdecimal gem.
  • Application crashes: Your application may crash or behave erratically due to the compatibility issue.

Q: How can I prevent the compatibility issue?

A: To prevent the compatibility issue, you can:

  • Use a version of Ruby that is compatible with the bigdecimal gem: Make sure you are using a version of Ruby that is compatible with the bigdecimal gem.
  • Use a different version of the bigdecimal gem: Use a different version of the bigdecimal gem that is compatible with Ruby 3.4.
  • Test your application thoroughly: Test your application thoroughly to ensure that it is working correctly with Ruby 3.4.

Q: What are some best practices for resolving compatibility issues?

A: Some best practices for resolving compatibility issues include:

  • Test your application thoroughly: Test your application thoroughly to ensure that it is working correctly with the new version of Ruby.
  • Use a version control system: Use a version control system, such as Git, to track changes to your code and easily revert to a previous version if necessary.
  • Document your changes: Document your changes and any issues you encounter, so that you can easily refer back to them later.

Q: Where can I find more information about the compatibility issue?

A: You can find more information about the compatibility issue on the following resources:

  • Ruby documentation: The Ruby documentation provides information about the compatibility issue and how to resolve it.
  • Gem documentation: The documentation for the bigdecimal gem provides information about the compatibility issue and how to resolve it.
  • Online forums: Online forums, such as the Ruby subreddit, may have discussions about the compatibility issue and how to resolve it.