启动Tabler本地服务器遇报错，含EventMachine C扩展加载失败问题求助

Hey there, let's work through this EventMachine issue you're hitting when trying to fire up your Tabler server. That error about failing to load the C extension is super common on Windows with older Ruby versions (like your Ruby25-x64), and we've got a couple of solid fixes to try:

Quick Temporary Fix: Use the Pure-Ruby Reactor #

If you need to get the server running right away, you can force EventMachine to use its pure-Ruby implementation instead of the problematic C extension. Here's how to do it on Windows:

• Open your command prompt, navigate to your Tabler project folder, and run:

  set EM_PURE_RUBY=1 && jekyll serve
  

This tells EventMachine to skip the C extension and use the pure-Ruby reactor directly, which should get your server up without the error.

Permanent Fix: Reinstall EventMachine with Compatible C Extension #

To fix the root issue (so you don't have to use the pure-Ruby workaround every time), follow these steps:

1. Uninstall the current EventMachine gem:

   gem uninstall eventmachine
   

   When prompted, select all versions to remove completely.
2. Ensure you have the Ruby DevKit set up:
   Windows requires the Ruby DevKit to compile native C extensions. If you didn't install it with Ruby 2.5, grab the appropriate DevKit for x64 Ruby 2.5, extract it, and run:

   ruby dk.rb init
   ruby dk.rb install
   

   This links the DevKit to your Ruby installation so it can compile extensions.
3. Reinstall EventMachine with the Ruby platform flag:
   Run this command to force the gem to compile the C extension specifically for your Ruby version:

   gem install eventmachine --platform=ruby
   

   If you're using Bundler (which Tabler probably recommends), update your Gemfile to specify a version compatible with Ruby 2.5 (like 1.2.7), then run bundle install:

   # Add this to your Gemfile if it's not already there
   gem 'eventmachine', '~> 1.2.7'
   

   bundle install
   

Bonus: Check Ruby Version Compatibility #

Ruby 2.5 is end-of-life now, and newer versions of Jekyll or Tabler dependencies might not play nice with it. If the above fixes still don't work, consider upgrading to a more recent supported Ruby version (like 2.7 or 3.1) – just make sure it's compatible with the version of Jekyll that Tabler uses.

Once you've tried these steps, your Tabler server should start up without that EventMachine error!

内容的提问来源于stack exchange，提问作者user9278936