Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

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!