rspecしたらproject名メソッドが見つからないというエラー

Question

###前提・実現したいこと
rspecしたい

###発生している問題・エラーメッセージ
[vagrant@localhost project]$ rspec spec/controllers/admin/users_controller_spec.rb
/usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/railtie/configuration.rb:95:in method_missing': undefined method project' for #Rails::Application::Configuration:0x007fdeb2f5fd00 (NoMethodError)
from /vagrant/project/config/routes.rb:2:in block in <top (required)>' from /usr/local/lib/ruby/gems/2.3.0/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:432:in instance_exec'
from /usr/local/lib/ruby/gems/2.3.0/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:432:in eval_block' from /usr/local/lib/ruby/gems/2.3.0/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:410:in draw'
from /vagrant/idea/config/routes.rb:1:in <top (required)>' from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in load'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in block in load' from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in load_dependency'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in load' from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application/routes_reloader.rb:40:in block in load_paths'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application/routes_reloader.rb:40:in each' from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application/routes_reloader.rb:40:in load_paths'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application/routes_reloader.rb:16:in reload!' from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application/routes_reloader.rb:26:in block in updater'
from /usr/local/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/file_update_checker.rb:75:in execute' from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application/routes_reloader.rb:27:in updater'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application/routes_reloader.rb:7:in execute_if_updated' from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application/finisher.rb:69:in block in module:Finisher'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in instance_exec' from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in run'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in block in run_initializers' from /usr/local/lib/ruby/2.3.0/tsort.rb:228:in block in tsort_each'
from /usr/local/lib/ruby/2.3.0/tsort.rb:350:in block (2 levels) in each_strongly_connected_component' from /usr/local/lib/ruby/2.3.0/tsort.rb:431:in each_strongly_connected_component_from'
from /usr/local/lib/ruby/2.3.0/tsort.rb:349:in block in each_strongly_connected_component' from /usr/local/lib/ruby/2.3.0/tsort.rb:347:in each'
from /usr/local/lib/ruby/2.3.0/tsort.rb:347:in call' from /usr/local/lib/ruby/2.3.0/tsort.rb:347:in each_strongly_connected_component'
from /usr/local/lib/ruby/2.3.0/tsort.rb:226:in tsort_each' from /usr/local/lib/ruby/2.3.0/tsort.rb:205:in tsort_each'
from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in run_initializers' from /usr/local/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in initialize!'
from /vagrant/idea/config/environment.rb:5:in <top (required)>' from /usr/local/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in require'
from /usr/local/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in require' from /vagrant/idea/spec/rails_helper.rb:3:in <top (required)>'
from /usr/local/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in require' from /usr/local/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in require'
from /vagrant/idea/spec/controllers/admin/users_controller_spec.rb:1:in <top (required)>' from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/lib/rspec/core/configuration.rb:1361:in load'
from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/lib/rspec/core/configuration.rb:1361:in block in load_spec_files' from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/lib/rspec/core/configuration.rb:1359:in each'
from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/lib/rspec/core/configuration.rb:1359:in load_spec_files' from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/lib/rspec/core/runner.rb:106:in setup'
from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/lib/rspec/core/runner.rb:92:in run' from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/lib/rspec/core/runner.rb:78:in run'
from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/lib/rspec/core/runner.rb:45:in invoke' from /usr/local/lib/ruby/gems/2.3.0/gems/rspec-core-3.4.4/exe/rspec:4:in <top (required)>'
from /usr/local/bin/rspec:23:in load' from /usr/local/bin/rspec:23:in <main>'

###試したこと
他の〜spec.rbでも同じエラーが起こるか確認ー＞起こる
routes.rbやdevelopment.rbなどのRails.application部分をproject::Applicationに変更

初歩的なミスなのかもしれませんが、何卒よろしくお願い致します。

Answer 1

config/environments/development.rbだけでなく、
config/test.rbにもconfig.projectメソッドを宣言すると直った