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
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.
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