"gem install rails" fails

Question

When I run

gem install rails

I get

ERROR:  Error installing rails:
invalid gem: package is corrupt, exception while verifying: undefined method `size' for nil:NilClass (NoMethodError) in /var/lib/gems/2.1.0/cache/nokogiri-1.6.7.rc3.gem

score 1 · Accepted Answer · edited May 23 '17 at 11:50

1

If the error message says the "package is corrupt", you need to find a way to delete it and download it again.

Google "rails package is corrupt" and you will find some links to stackoverflow with similar queries. For example: Error install rubyracer with error "invalid gem: package is corrupt"

Another similar problem: https://github.com/rails/rails/issues/14807

edited May 23 '17 at 11:50

Community

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answered Oct 08 '15 at 17:08

garbo999

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I deleted the file mentioned in the error. There was a few dependency issues, but I was able to install it after that.Thanks!! – Akheel K M Oct 09 '15 at 13:11
I suggest upgrading your Rails version if possible. That might help to avoid future conflicts of this sort. – garbo999 Oct 09 '15 at 19:18

score 0 · Answer 2 · answered Oct 08 '15 at 17:11

0

This depends on version of Ruby that you are using. I know that 2.2.* versions has conflicts with Nokogiri. I switched to 2.1.* versions which works fine with Nokogiri.

answered Oct 08 '15 at 17:11

Mr.D

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Mine is 2.1.* "ruby 2.1.2p95 (2014-05-08) [x86_64-linux-gnu]" – Akheel K M Oct 08 '15 at 17:54

score -1 · Answer 3 · edited Oct 08 '15 at 16:29

-1

Try to install Nokogiri first using

# gem install nokogiri

And after that install Rails

# gem install rails

edited Oct 08 '15 at 16:29

the Tin Man

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answered Oct 08 '15 at 16:29

Luís Melo

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"gem install rails" fails

3 Answers3