使用country_select gem时出现i18n_data-0.10.0未找到错误求助

Hey Dylan, let's work through this issue together. Even though your bundle install output clearly shows i18n_data 0.10.0 is installed, your server is still throwing a missing gem error—this usually boils down to a mismatch between the gem environment your server is using and the one Bundler set up. Here are the steps to fix it:

Step 1: Always Start Your Server with bundle exec #

When you restart your Rails server, make sure you're using Bundler to load the exact gems specified in your Gemfile.lock. Instead of just running rails s, use:

bundle exec rails s

This ensures your server uses the bundled version of i18n_data instead of any global gems that might be missing it.

Step 2: Clear Bundler's Cache and Reinstall Dependencies #

Sometimes cached gem files can get corrupted or out of sync. Let's clean them up and start fresh:

# Force clean all unused gems
bundle clean --force

# Reinstall all gems from your Gemfile.lock
bundle install

Step 3: Restart Spring (If You're Using It) #

Spring keeps your Rails app running in the background for faster development, but it can cache outdated gem information. Stop it and let it restart with the fresh gem set:

spring stop

Then run bundle exec rails s again—Spring will restart automatically with the correct gems loaded.

Step 4: Verify i18n_data is in Your Gemfile.lock #

Double-check that i18n_data (0.10.0) exists in your Gemfile.lock file. If it's missing, run bundle update country_select to ensure all dependencies are properly resolved and added to the lock file.

Step 5: Update Bundler (Optional but Recommended) #

Your Bundler version (2.1.4) is a bit older—updating to the latest version can resolve environment inconsistencies:

gem install bundler
bundle update

After trying these steps, restart your server with bundle exec rails s and the error should be gone.

内容的提问来源于stack exchange，提问作者Dylan