# Reinstall gem on Mac 10.5

**URL:** <https://www.ruby-forum.com/t/reinstall-gem-on-mac-10-5/160515>\
**Category:** Rails\
**Created:** [February 17, 2009, 10:22am UTC](https://www.ruby-forum.com/t/reinstall-gem-on-mac-10-5/160515 "2009-02-17T10:22:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [February 17, 2009, 10:22am UTC](https://www.ruby-forum.com/t/reinstall-gem-on-mac-10-5/160515/1 "2009-02-17T10:22:53Z")

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I’m been google around try to figure out easy way to reinstall gem on  
my mac. I tried running the follow command.

udo gem install rails --include-dependencies  
sudo: gem: command not found

Please help

Thank you

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<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [February 17, 2009, 10:55am UTC](https://www.ruby-forum.com/t/reinstall-gem-on-mac-10-5/160515/2 "2009-02-17T10:55:17Z")

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On Mon, Feb 16, 2009 at 7:00 PM, removed\_email\_address@domain.invalid  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)wrote:

> I’m been google around try to figure out easy way to reinstall gem on  
> my mac. I tried running the follow command.
> 
> udo gem install rails --include-dependencies  
> sudo: gem: command not found

What gem are you trying to reinstall? Why?

-Conrad