undefined local variable or method `haml_buffer' when using haml templates (the second)

Gemfile.lock

GIT
  remote: git://github.com/hanami/view.git
  revision: 1d2cc445ef96b5a58c61d8f7e6d5dfa44c917b5a
  branch: 1d2cc445ef96b5a58c61d8f7e6d5dfa44c917b5a
  specs:
    hanami-view (1.0.0)
      hanami-utils (~> 1.0)
      tilt (~> 2.0, >= 2.0.1)

GEM
  remote: https://rubygems.org/
  specs:
    addressable (2.5.1)
      public_suffix (~> 2.0, >= 2.0.2)
    capybara (2.14.4)
      addressable
      mime-types (>= 1.16)
      nokogiri (>= 1.3.3)
      rack (>= 1.0.0)
      rack-test (>= 0.5.4)
      xpath (~> 2.0)
    concurrent-ruby (1.0.5)
    dotenv (2.2.1)
    dry-configurable (0.7.0)
      concurrent-ruby (~> 1.0)
    dry-container (0.6.0)
      concurrent-ruby (~> 1.0)
      dry-configurable (~> 0.1, >= 0.1.3)
    dry-core (0.3.1)
      concurrent-ruby (~> 1.0)
    dry-equalizer (0.2.0)
    dry-initializer (1.4.1)
    dry-logic (0.4.1)
      dry-container (~> 0.2, >= 0.2.6)
      dry-core (~> 0.2)
      dry-equalizer (~> 0.2)
    dry-struct (0.3.1)
      dry-configurable (~> 0.1)
      dry-core (~> 0.3)
      dry-equalizer (~> 0.2)
      dry-types (~> 0.9, >= 0.9.0)
      ice_nine (~> 0.11)
    dry-types (0.11.0)
      concurrent-ruby (~> 1.0)
      dry-configurable (~> 0.1)
      dry-container (~> 0.3)
      dry-core (~> 0.2, >= 0.2.1)
      dry-equalizer (~> 0.2)
      dry-logic (~> 0.4, >= 0.4.0)
      inflecto (~> 0.0.0, >= 0.0.2)
    dry-validation (0.11.0)
      concurrent-ruby (~> 1.0)
      dry-configurable (~> 0.1, >= 0.1.3)
      dry-core (~> 0.2, >= 0.2.1)
      dry-equalizer (~> 0.2)
      dry-logic (~> 0.4, >= 0.4.0)
      dry-types (~> 0.11.0)
    haml (5.0.1)
      temple (>= 0.8.0)
      tilt
    hanami (1.0.0)
      bundler (~> 1.13)
      concurrent-ruby (~> 1.0)
      hanami-assets (~> 1.0)
      hanami-controller (~> 1.0)
      hanami-helpers (~> 1.0)
      hanami-mailer (~> 1.0)
      hanami-router (~> 1.0)
      hanami-utils (~> 1.0)
      hanami-validations (~> 1.0)
      hanami-view (~> 1.0)
      thor (~> 0.19)
    hanami-assets (1.0.0)
      hanami-helpers (~> 1.0)
      hanami-utils (~> 1.0)
      tilt (~> 2.0, >= 2.0.2)
    hanami-controller (1.0.1)
      hanami-utils (~> 1.0)
      rack (~> 2.0)
    hanami-helpers (1.0.0)
      hanami-utils (~> 1.0)
    hanami-mailer (1.0.0)
      hanami-utils (~> 1.0)
      mail (~> 2.5)
      tilt (~> 2.0, >= 2.0.1)
    hanami-model (1.0.1)
      concurrent-ruby (~> 1.0)
      dry-types (~> 0.10)
      hanami-utils (~> 1.0)
      rom-repository (~> 1.3)
      rom-sql (~> 1.3)
    hanami-router (1.0.1)
      hanami-utils (~> 1.0)
      http_router (= 0.11.2)
      rack (~> 2.0)
    hanami-utils (1.0.2)
      transproc (~> 1.0)
    hanami-validations (1.0.0)
      dry-validation (~> 0.10)
      hanami-utils (~> 1.0)
    http_router (0.11.2)
      rack (>= 1.0.0)
      url_mount (~> 0.2.1)
    ice_nine (0.11.2)
    inflecto (0.0.2)
    mail (2.6.6)
      mime-types (>= 1.16, < 4)
    mime-types (3.1)
      mime-types-data (~> 3.2015)
    mime-types-data (3.2016.0521)
    mini_portile2 (2.2.0)
    minitest (5.10.3)
    nokogiri (1.8.0)
      mini_portile2 (~> 2.2.0)
    public_suffix (2.0.5)
    rack (2.0.3)
    rack-test (0.7.0)
      rack (>= 1.0, < 3)
    rake (12.0.0)
    rom (3.3.1)
      concurrent-ruby (~> 1.0)
      dry-core (~> 0.3)
      dry-equalizer (~> 0.2)
      dry-initializer (~> 1.3)
      dry-types (~> 0.9, >= 0.9.4)
      rom-mapper (~> 0.5, >= 0.5.1)
    rom-mapper (0.5.1)
      dry-core (~> 0.2, >= 0.2.3)
      dry-equalizer (~> 0.2)
      transproc (~> 1.0)
    rom-repository (1.4.0)
      dry-core (~> 0.3, >= 0.3.1)
      dry-struct (~> 0.3)
      rom (~> 3.3)
      rom-mapper (~> 0.5)
    rom-sql (1.3.3)
      dry-core (~> 0.3)
      dry-equalizer (~> 0.2)
      dry-types (~> 0.10, >= 0.10.2)
      rom (~> 3.2, >= 3.2.2)
      sequel (~> 4.43)
    sequel (4.48.0)
    shotgun (0.9.2)
      rack (>= 1.0)
    sqlite3 (1.3.13)
    temple (0.8.0)
    thor (0.19.4)
    tilt (2.0.8)
    transproc (1.0.2)
    url_mount (0.2.1)
      rack
    xpath (2.1.0)
      nokogiri (~> 1.3)

PLATFORMS
  ruby

DEPENDENCIES
  capybara
  dotenv (~> 2.0)
  haml
  hanami (~> 1.0)
  hanami-model (~> 1.0)
  hanami-view!
  minitest
  rake
  shotgun
  sqlite3

BUNDLED WITH
   1.15.3

gistfile1.txt

Boot Error

Something went wrong while loading /Users/ferdi/projects/bookshelf/config.ru

NameError: undefined local variable or method `haml_buffer' for #<Hanami::View::Rendering::LayoutScope:0x007fcf03c49828> Did you mean? with_haml_buffer

/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/bundler/gems/view-1d2cc445ef96/lib/hanami/view/rendering/layout_scope.rb:221:in `method_missing'
/Users/ferdi/projects/bookshelf/apps/web/templates/application.html.haml:1:in `block in singleton class'
/Users/ferdi/projects/bookshelf/apps/web/templates/application.html.haml:-2:in `instance_eval'
/Users/ferdi/projects/bookshelf/apps/web/templates/application.html.haml:-2:in `singleton class'
/Users/ferdi/projects/bookshelf/apps/web/templates/application.html.haml:-5:in `__tilt_70263515647420'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/tilt-2.0.8/lib/tilt/template.rb:170:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/tilt-2.0.8/lib/tilt/template.rb:170:in `evaluate'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/tilt-2.0.8/lib/tilt/haml.rb:24:in `evaluate'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/tilt-2.0.8/lib/tilt/template.rb:109:in `render'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/bundler/gems/view-1d2cc445ef96/lib/hanami/view/template.rb:41:in `render'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/bundler/gems/view-1d2cc445ef96/lib/hanami/layout.rb:139:in `render'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/bundler/gems/view-1d2cc445ef96/lib/hanami/view/rendering.rb:107:in `render'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/bundler/gems/view-1d2cc445ef96/lib/hanami/view/rendering.rb:258:in `render'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-1.0.0/lib/hanami/rendering_policy.rb:56:in `_render_action'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-1.0.0/lib/hanami/rendering_policy.rb:48:in `_render'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-1.0.0/lib/hanami/rendering_policy.rb:38:in `render'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-1.0.0/lib/hanami/application.rb:169:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/2.4.0/delegate.rb:83:in `method_missing'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/http_router-0.11.2/lib/http_router.rb:193:in `process_destination_path'
(eval):15:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/http_router-0.11.2/lib/http_router.rb:288:in `raw_call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-router-1.0.1/lib/hanami/routing/http_router.rb:156:in `raw_call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/http_router-0.11.2/lib/http_router.rb:142:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-router-1.0.1/lib/hanami/router.rb:1019:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/rack-2.0.3/lib/rack/method_override.rb:22:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-1.0.0/lib/hanami/assets/static.rb:49:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/rack-2.0.3/lib/rack/content_length.rb:15:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/rack-2.0.3/lib/rack/common_logger.rb:33:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/rack-2.0.3/lib/rack/builder.rb:153:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-1.0.0/lib/hanami/app.rb:42:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/shotgun-0.9.2/lib/shotgun/loader.rb:86:in `proceed_as_child'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/shotgun-0.9.2/lib/shotgun/loader.rb:31:in `call!'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/shotgun-0.9.2/lib/shotgun/loader.rb:18:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/hanami-1.0.0/lib/hanami/assets/static.rb:49:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/rack-2.0.3/lib/rack/lint.rb:49:in `_call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/rack-2.0.3/lib/rack/lint.rb:37:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/rack-2.0.3/lib/rack/show_exceptions.rb:23:in `call'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/rack-2.0.3/lib/rack/handler/webrick.rb:86:in `service'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/2.4.0/webrick/httpserver.rb:140:in `service'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/2.4.0/webrick/httpserver.rb:96:in `run'
/Users/ferdi/.rbenv/versions/2.4.1/lib/ruby/2.4.0/webrick/server.rb:290:in `block in start_thread'