ERROR: 'rake/rdoctask' is obsolete and no longer supported. Use 'rdoc/task' (available in RDoc 2.4.2+) instead

Question

Seems the last post for this problem was closed for one reason or another so I\'ll try my luck...

I\'m trying to run a simple \"rake db:migrate\" command. When I do,

Answer 1

I ran into similar problem when migrating my old app to rails 2.3.15. I solved it by installing an older version of rake, and uninstalling current 10.0.3 version:

gem install rake --version 0.8.7
gem uninstall rake --version 10.0.3