Put rake task outside production environment

lib/tasks/devseed.rake

@@ -1,11 +1,11 @@
-require 'factory_girl'
-require 'faker'
-
-task :sow => :environment do
+unless Rails.env.production?
+  require 'factory_girl'
+  require 'faker'
+  task :sow => :environment do
     users = FactoryGirl.create_list(:user, 20)
     100.times do
       sample_users = users.sample(2)
       FactoryGirl.create :transaction, debtor: sample_users[0], creditor: sample_users[1], amount: 1 + rand(100)
     end
+  end
 end
-