Ruby: rake:22: undefined method `activate_bin_path' for Gem:Module (NoMethodError) -


i had problems in ruby 1.8.7-p374.

when try run "rake db:migrate" got error:

rubygems installed following executables:     /home/wellington/.rbenv/versions/1.8.7-p374/bin/gem  rubygems system software updated /home/wellington/.rbenv/versions/1.8.7-p374/bin/rake:22: undefined method `activate_bin_path' gem:module (nomethoderror)

its occurs on deploy rails apps.

any ideas solve this?

i resolved updating gem , bundler

gem update --system gem update bundler

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