b-core-1.0.13/lib/merb-core/core_ext/kernel.rb:142:in load_dependency': undefined method
activate' for Gem:Module (NoMethodError)
from /home/subrahmanyam/.rvm/gems/ruby-1.8.7-p374@mostfit/gems/merb-core-1.0.13/lib/merb-core/bootloader.rb:405:in load_dependencies'
from /home/subrahmanyam/.rvm/gems/ruby-1.8.7-p374@mostfit/gems/merb-core-1.0.13/lib/merb-core/bootloader.rb:405:in
each'
from /home/subrahmanyam/.rvm/gems/ruby-1.8.7-p374@mostfit/gems/merb-core-1.0.13/lib/merb-core/bootloader.rb:405:in load_dependencies'
from /home/subrahmanyam/.rvm/gems/ruby-1.8.7-p374@mostfit/gems/merb-core-1.0.13/lib/merb-core/bootloader.rb:393:in
run'
Merb was working good before I update rubygems . Now it is showing the above error . please help me.
Thanks in advance