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Cannot install rails: ERROR: While executing gem ... (NoMethodError) - undefined method `call' for nil:NilClas #4565
This happens on a brand new clean virtual machine with just ruby-ee 1.8.7 and rubygems 1.3.7
Installing other gems works:
I had considered that.
Unfortunately, my distro (gentoo linux) has so far only marked version 1.3.7 in its package manager (portage) as stable.
rubygems 1.8.x are available in portage, but marked as unstable - I'm not sure yet why - whether it causes further problems/conflicts down the line if enabled on a gentoo box - or whether that's simply due to them not being tested enough yet.
Either way though, if it's a bug, it should be fixed in the activemodel packaging methinks. If it requires rubygems 1.8, it should make that a hard requirement and complain.