Ruby on Rails 3 Tutorial Book Question

Im following the PDF version of this book and keep having an issue with different versions of gems being compatible. I had to skip the TDD section all together because I couldnt get a compatible version of rspec installed. Im now having the same problem with downloading a compatible version of blueprint-css. I dont want to have to skip anymore content. Is there an easier way to get all the correct versions of your gems? Im a React dev and very new to Rails so im unsure of how to navigate. Please advise!!

I’ve been working through the Ruby on Rails 3 Tutorial Book and found it incredibly helpful for understanding web development fundamentals. The step-by-step approach makes building apps much less intimidating, especially for someone like me who’s still grasping MVC concepts. While following the exercises, I also realized how useful it is to supplement learning with concise summaries of related books. For example, I recently used AI Book Summarizer to read the reminders of him summary, which gave me clear insights without spending hours reading. Combining hands-on practice with these summaries has really boosted my comprehension and kept me motivated to keep learning Rails.