Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Ruby Installing a Ruby Development Environment Installing a Ruby Development Environment Installing Ruby on Windows

Tong Vang
Tong Vang
9,926 Points

Installing Rails on Windows 7

While installing rails I received the following error: ERROR: While executing gem ... (Errno::EINVAL) Invalid argument - ./ActionDispatch/Routing/Mapper/Scoping/:

2 Answers

Jonathan L
Jonathan L
15,323 Points

Hi Tong, I don't have an immediate solution to your problem, BUT, I saw a thread from a month ago that may help... https://teamtreehouse.com/forum/error-3 Also, try copy/pasting your error message into Google (or the search engine of your choice). There may be some helpful info there as well. Good luck!