LSP is looking for missing gem but gem is already installed.

[lightweightcoder]

Description

I opened a ruby file, rubyLSP tries to start -> looks for missing gems and realises that mysql2 (0.5.3) is missing so it tries to install it but fails at installation step. This happened only today and I did not update the gem. I think LSP is looking at a different folder for the gem.

Expected Behaviour

• rubyLSP should be able to find the gem so it does not need to install it.

System / Project specs

• Ruby LSP VS Code extension: v0.5.16.
• Using rvm 1.29.12 to manage my ruby version.
• bundle --version shows 2.3.7
• ruby --version shows 3.1.1p18
• echo $GEM_HOME shows /Users/aljt/.rvm/gems/ruby-3.1.1
• echo $GEM_PATH shows /Users/aljt/.rvm/gems/ruby-3.1.1:/Users/aljt/.rvm/gems/ruby-3.1.1@global
• echo $RUBY_VERSION shows ruby-3.1.1
• ruby -e 'puts [Gem.user_dir, Gem.default_dir]' shows
  /Users/aljt/.gem/ruby/3.1.0
  /Users/aljt/.rvm/rubies/ruby-3.1.1/lib/ruby/gems/3.1.0
• bundle info mysql2 shows the path is /Users/aljt/.rvm/gems/ruby-3.1.1/gems/mysql2-0.5.3

VScode output logs from LSP

The GEM_HOME and GEM_PATH variables are different from the ones I ran in the terminal using echo

Activated Ruby environment: GEM_HOME=/Users/aljt/.gem/ruby/3.1.0 GEM_PATH=/Users/aljt/.gem/ruby/3.1.0:/Users/aljt/.rvm/rubies/ruby-3.1.1/lib/ruby/gems/3.1.0 PATH=/Users/aljt/.gem/ruby/3.1.0/bin:/Users/aljt/.rvm/rubies/ruby-3.1.1/lib/ruby/gems/3.1.0/bin:/Users/aljt/.rvm/rubies/ruby-3.1.1/bin:/Users/aljt/.rvm/gems/ruby-3.1.1/bin:/Users/aljt/.rvm/gems/ruby-3.1.1@global/bin:/Users/aljt/.rvm/rubies/ruby-3.1.1/bin:/Users/aljt/.nvm/versions/node/v12.20.0/bin:/Library/Frameworks/Python.framework/Versions/2.7/bin:/usr/local/bin:/usr/local/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Users/aljt/.rvm/bin

...some logs...

The following gems are missing
 * mysql2 (0.5.3)
Install missing gems with `bundle install`

...some logs...

An error occurred while installing mysql2 (0.5.3), and Bundler cannot continue.
In Gemfile:
  mysql2

/Users/aljt/.rvm/rubies/ruby-3.1.1/lib/ruby/3.1.0/bundler/definition.rb:481:in `materialize': Could not find mysql2-0.5.3 in any of the sources (Bundler::GemNotFound)

... more logs...

Troubleshooting

• Tried to uninstall the extension, deleted the .ruby-lsp folder and reinstalled but did not work.

[rafasoares]

I'm seeing the same issue, but with iconv.

Running BUNDLE_GEMFILE=.ruby-lsp/Gemfile bundle install from the project root succeeds (but the LSP still doesn't work).

I've tried forcing the version manager to RVM, no change.

I rolled back to v0.5.15 and it works.

[vinistock]

We just released https://github.com/Shopify/ruby-lsp/releases/tag/vscode-ruby-lsp-v0.5.17, with some RVM fixes. Can you please give it a try and let us know if the issue has been fixed?

[lightweightcoder]

@vinistock Yup it works now. Thank you for fixing it quickly! 🚀

[rafasoares]

Sorry @vinistock, I missed the notification from this thread.
I'm on 0.5.21 and I have no issues at the moment :)