ruby on rails - Faker: Don't know how to build task 'enviroment' -

i have sample_data.rake file:

namespace :db desc "fill patients sample data" task populate: enviroment   patient.create!(name: ["example", "user"],                   email: "example@gmail.com"                   password: "foobar"                   password_confirmation: "foobar"                   age: "26"                   doctor_id: "3"                   dao: "true"                   active: "true")   350.times |n|     name=faker::name.name     email = "example-#{n+1}@gmail.com"     password = "password"     age = (25...45).sample     doctor_id = [2,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22].sample     dao = ["true", "false"].sample     active = "true"     patient.create!(name: name,                                      email: email,                                    password: password,                              password_confirmation: password,                 age: age,                                        doctor_id: doctor_id                             dao: dao,                                        active: active)       end   end end 

it placed on lib/tasks, , when run rake db:populate i'm getting next error.

rake aborted! don't know how build task 'enviroment' /home/marcpursals/.rvm/gems/ruby-1.9.3-p448@migtrace/bin/ruby_noexec_wrapper:14:in `eval' /home/marcpursals/.rvm/gems/ruby-1.9.3-p448@migtrace/bin/ruby_noexec_wrapper:14:in `<main>' tasks: top => db:populate 

i double checked other posts: (how build task 'db:populate' , faker "don't know how build task? , rake aborted uploading images using faker ruby project.) , didn't help.

does solved issue this?

thanks lot in advance.

enviroment should :environment, correctly spelled symbol.

task populate: :environment   # ...