使用ubuntu/trust64执行bundle install时遇RubyGems版本兼容报错求助

Hey there, let's get that annoying RubyGems version warning sorted out so you can run bundle install with parallel gem installs. Here's what you need to do:

Step 1: Upgrade RubyGems to a Thread-Safe Version #

Ubuntu Trusty 64 ships with an older, non-thread-safe RubyGems (1.8.23) by default. To fix this, we'll upgrade it to at least version 2.1.0 (the latest stable version works even better):

• Run this command in your terminal (use sudo to update system-wide RubyGems):

  sudo gem update --system
  

• If you don't have sudo access or prefer to install it just for your user account, use the --user-install flag instead:

  gem update --system --user-install
  

  If you go this route, you'll need to add the user-specific gem bin directory to your PATH. Open your ~/.bashrc or ~/.profile file and add this line (replace 2.0.0 with your Ruby version—Ubuntu Trusty uses 2.0.0 by default):

  export PATH="$HOME/.gem/ruby/2.0.0/bin:$PATH"
  

  Then run source ~/.bashrc to apply the change right away.

Step 2: Re-Run Bundle Install #

Once RubyGems is upgraded, navigate back to your project directory and run:

bundle install

You won't see that thread safety warning anymore, and your gems will install in parallel to save you time.

Quick Context #

The warning pops up because older RubyGems versions can't handle parallel gem installations safely. Upgrading RubyGems not only fixes this issue but also unlocks newer gem features and bug fixes.

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