Invalid gemspec -Illformed requirement ["#<YAML::Syck::DefaultKey:0xb5f9c990> 3.2.0"]

Question

Invalid gemspec in [/usr/lib/ruby/gems/1.8/specifications/activemodel-3.2.0.gemspec]: Illformed requirement ["#<YAML::Syck::DefaultKey:0xb5f9c990> 3.2.0"]

From trying to do a sudo gem update for other issues

getting this hundreds of time as sudo gem update goes through each gem and gets the message for most of them

Dionedionis

Answer 1

This can happen when upgrading to Rails 3.2.

Updating Rubygems should fix this issue.

gem update --system

Hope this helps.

Burnside

sort of. It fixed the immediate issue... and raised gem install linecache19 -v '0.5.11' Building native extensions. This could take a while... ERROR: Error installing linecache19: ERROR: Failed to build gem native extension. /home/durrantm/.rvm/rubies/ruby-1.8.7-p352/bin/ruby extconf.rb *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of – Dionedionis

which I will post separately. – Dionedionis

I had the same problem with dm-active_model-1.2.1 and rails 3.1. Updating rubygems fixed it :) Thanks! This was the error I got: Invalid gemspec in [[project_dir]/shared/bundle/ruby/1.9.1/specifications/dm-active_model-1.2.1.gemspec]: Illformed requirement ["#<Syck::DefaultKey:0x9a7f798> 1.2.3"] – Collation

Answer 2

I still had the errors after updating the rubygem.

Then I ran rvm gemset empty to delete the gems. This fixed it for me.

Freestone

I had to use "rvmsudo rvm gemset empty" for my globally installed gems, but thanks for the empty tip ! – Reefer

Where do you get the "rvm" or "rvmsudo" commands from? My system doesn't seem to have those. – Balk

rvm is a ruby version manager (rvm.io). A utility to have several ruby version installed, with their own gems. Running this command won't help with this problem if you don't already have rvm installed. – Freestone

Answer 3

I had this issue, but all the methods above did not help.

So, I decided to move all the *3.2.0.spec within directory

/usr/local/ruby/lib/ruby/gems/1.9.1/specifications

into another directory, and things are solved.

Command:

sudo mv /usr/local/ruby/lib/ruby/gems/1.9.1/specifications/actionmailer-3.2.0.gemspec <another_dir>

Perform similar commands to other files:

• actionpack-3.2.0.gemspec
• activemodel-3.2.0.gemspec
• activerecord-3.2.0.gemspec
• activeresource-3.2.0.gemspec
• activesupport-3.2.0.gemspec
• newrelic_rpm-3.2.0.gemspec
• rails-3.2.0.gemspec
• railties-3.2.0.gemspec

Hindbrain