Installation Issue?: Invalid gemspec in [..earthquake-0.8.3.gemspec]: Illformed requirement

[egroeg]

I'm probably doing something wrong but when I install I get an error running earthquake:

$earthquake
Invalid gemspec in [/usr/lib/ruby/gems/1.9.1/specifications/earthquake-0.8.3.gemspec]: Illformed requirement ["#Syck::DefaultKey:0x00000001933928 0.4.3"]

$cat earthquake-0.8.3.gemspec | grep -i syck
s.add_runtime_dependency(%q<twitter_oauth>, ["#Syck::DefaultKey:0x00000001933928 0.4.3"])
s.add_dependency(%q<twitter_oauth>, ["#Syck::DefaultKey:0x00000001933928 0.4.3"])
s.add_dependency(%q<twitter_oauth>, ["#Syck::DefaultKey:0x00000001933928 0.4.3"])

$gem uninstall earthquake -i /usr/lib/ruby/gems/1.9.1
Invalid gemspec in [/usr/lib/ruby/gems/1.9.1/specifications/earthquake-0.8.3.gemspec]: Illformed requirement ["#Syck::DefaultKey:0x00000001933928 0.4.3"]
Invalid gemspec in [/usr/lib/ruby/gems/1.9.1/specifications/earthquake-0.8.3.gemspec]: Illformed requirement ["#Syck::DefaultKey:0x00000001933928 0.4.3"]
INFO: gem "earthquake" is not installed

[jugyo]

It seems same as #61.
Please this @irohiroki's comment to fix it:
#61 (comment)

Thanks.

[egroeg]

Very sorry. That fixed it. Thanks!

[jugyo]

Have fun :)