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Robert Lynn
1,704 PointsRailsInstaller
I'm trying to run the railsinstaller, but when the installation starts, it immediately stops and a pop-up window say "Error changing group /opt/rix to rvm" and in the setup window it says "Directory already exist: /opt/rix", then the installer just quits. Does anyone know what the problem is?
2 Answers

Shawn Denham
Python Development Techdegree Student 17,801 PointsAs silly as this sounds 99% of the time restarting your Mac fixes the issue. If not, James Barnett posted these steps on another thread.
It's a permissions error. The easiest way to fix it is to run Repair Disk Permissions on your hard drive.
- Open Disk Utility
- Choose Macintosh HD
- Click Repair Disk Permissions
- Restart your Mac
Robert Lynn
1,704 PointsThat fixed it. Thanks so much
Adam Sackfield
Pro Student 19,663 PointsAdam Sackfield
Courses Plus Student 19,663 PointsIf your would like a easier method as i had nightmare installing Rails on Windows. So i use Cloud9 IDE, simple to set up choose your Ruby and Rails versions and its all hosted in the cloud for you.