CODEWITHSUNDEEP
ruby-on-railsubunturuby-on-rails-3.1
phoozle
phoozle

Reputation: 271

Rails 3.1 on Ubuntu 11.04 via RVM - uninitialized constant Psych::Syck

gem install rails --pre
ERROR:  While executing gem ... (NameError)
    uninitialized constant Psych::Syck

I can't seem to find any info on how to resolve this. Has anyone else had the same problem?

I am using a newly created gemset in RVM with Ruby 1.9.2

Upvotes: 27

Views: 6069

Answers (2)

patrick
patrick

Reputation: 838

I had exactly the same problem, and the other solutions mentioned here didn't work for me.

However, this did:

gem update --system

Upvotes: 12

hiroshi
hiroshi

Reputation: 7251

I had exactly same problem on mac via RVM. Specifying version is the rescue for me.

gem install rails --pre --version 3.1.0.rc1

update (2011-06-12) with rubygems 1.8.4, I can install rails 3.1.0.rc4 without specifying the version.

Upvotes: 33

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