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Ruby Build a Simple Ruby on Rails Application Getting Started with Rails Installing Rails (Mac)

What to do? "This installer was made only for OSX 10.7 / 10.8, exiting now"

Tried to install ruby on rails on my mac but this message appeared:

"This installer was made only for OSX 10.7 / 10.8, exiting now"

image: http://screencast.com/t/1pypr96STPha

2 Answers

Jennifer Nordell
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Jennifer Nordell
Treehouse Teacher

My advice would be to follow the instructions on this site:

https://gorails.com/setup/osx/10.11-el-capitan

My assumption here is that you're running 10.11 El Capitan on your Mac.

Hope this helps! :sparkles:

Thanks! I tried but when I got to rails this error appeared

http://screencast.com/t/NMLJTQaIlhLH

Jennifer Nordell
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Jennifer Nordell
Treehouse Teacher

Wilfredo Casas whenever you get a permissions error like that, you should rerun the command with sudo in front.

sudo gem install rails

Try that and see how it goes! :sparkles:

I copied the sudo command you gave me, I think it ran ok. Then I tried again running "gem install rails -v 4.2.6" but same problem appeared:

http://screencast.com/t/4v8E3VXcjM

Jennifer Nordell
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Jennifer Nordell
Treehouse Teacher

Yes, because you ran it again without the sudo. If it installed ok with the sudo there should be no reason to install it again.

Ok, because of the sandboxing features included in El Capitan you are not going to be able to install any important system changing things without the sudo command. This command makes the command you're trying to run execute as a "super user". That command is short for "super user do". So any time you get a permissions denied error you need to use sudo.

Jennifer Nordell
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Jennifer Nordell
Treehouse Teacher

Then I don't know. All I can do is point you in the direction of the Ruby site which I gave in the original answer. You may have to repost this question. If I delete the answer, all the comments get deleted as well so I'd rather not in case someone else is also having this problem.

hmm so after I ran again "sudo gem install rails", it ran ok, then I tried to verify with rails -v and this appeared

http://screencast.com/t/2pbxXYR4ULy