Re: rails constantly failing with http 406 error

Do you have a index.html.erb in the app/views/welcome folder? Create one if
it doesn't exist. If that doesn't work, try renaming your controller to
some word that can be pluralized. For ex, WelcomeMessageController and
create index.html.erb in app/views/welcome_messages folder.

On Sun, Jul 28, 2019, 02:37 Barry Kimelman <[email protected]>
wrote:

> I am a ruby and rails rookie just trying to give myself an intro to ruby
> and rails on my windows 10 laptop.
>
> Almost everything I try with rails ends up failing with a "http 406"
> error. I did some research on http 406 error and what I found stated "data
> was requested in a format not supported by the server".
>
> I was just following the simple steps in a rails beginner tutorial to
> create a basic "blog" application. I changed to the directory where I
> wanted the application structure to be created and issued the command
> "rails new blog". After that succeeded I changed the current directory to
> "blog". As stated in the tutorial I issued the command "ruby bin\rails
> server". I waited for the messages from the server yo be displayed which
> indicated the server was ready to accept requests. I then went into my
> browser and entered the URL http://localhost:3000. After a very short
> time the server displayed an error message and a traceback.
>
>
>
> C:\barry\ruby\environment\blog>ruby bin\rails server
> => Booting Puma
> => Rails 5.2.3 application starting in development
> => Run `rails server -h` for more startup options
> *** SIGUSR2 not implemented, signal based restart unavailable!
> *** SIGUSR1 not implemented, signal based restart unavailable!
> *** SIGHUP not implemented, signal based logs reopening unavailable!
> Puma starting in single mode...
> * Version 3.12.1 (ruby 2.6.0-p0), codename: Llamas in Pajamas
> * Min threads: 5, max threads: 5
> * Environment: development
> * Listening on tcp://localhost:3000
> Use Ctrl-C to stop
> C:/Ruby/lib/ruby/gems/2.6.0/gems/activemodel-5.2.3/lib/active_model/validations/clusivity.rb:8:
> warning: already initialized
> constant ActiveModel::Validations::Clusivity::ERROR_MESSAGE
> C:/ruby/lib/ruby/gems/2.6.0/gems/activemodel-5.2.3/lib/active_model/validations/clusivity.rb:8:
> warning: previous definition
> of ERROR_MESSAGE was here
> Started GET "/" for ::1 at 2019-07-27 14:02:12 -0600
> Processing by Rails::WelcomeController#index as HTML
> Completed 406 Not Acceptable in 708ms (ActiveRecord: 0.0ms)
>
>
>
> ActionController::UnknownFormat (Rails::WelcomeController#index is missing
> a template for this request format and variant.
>
> request.formats: ["text/html"]
> request.variant: []
>
> NOTE! For XHR/Ajax or API requests, this action would normally respond
> with 204 No Content: an empty white screen. Since you'
> re loading it in a web browser, we assume that you expected to actually
> render a template, not nothing, so we're showing an e
> rror to be extra-clear. If you expect 204 No Content, carry on. That's
> what you'll get from an XHR or API request. Give it a
> shot.):
>
> actionpack (5.2.3) lib/action_controller/metal/implicit_render.rb:55:in
> `default_render'
> actionpack (5.2.3)
> lib/action_controller/metal/basic_implicit_render.rb:6:in `block in
> send_action'
> actionpack (5.2.3)
> lib/action_controller/metal/basic_implicit_render.rb:6:in `tap'
> actionpack (5.2.3)
> lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
> actionpack (5.2.3) lib/abstract_controller/base.rb:194:in `process_action'
> actionpack (5.2.3) lib/action_controller/metal/rendering.rb:30:in
> `process_action'
> actionpack (5.2.3) lib/abstract_controller/callbacks.rb:42:in `block in
> process_action'
> activesupport (5.2.3) lib/active_support/callbacks.rb:132:in
> `run_callbacks'
> actionpack (5.2.3) lib/abstract_controller/callbacks.rb:41:in
> `process_action'
> actionpack (5.2.3) lib/action_controller/metal/rescue.rb:22:in
> `process_action'
> actionpack (5.2.3) lib/action_controller/metal/instrumentation.rb:34:in
> `block in process_action'
> activesupport (5.2.3) lib/active_support/notifications.rb:168:in `block in
> instrument'
> activesupport (5.2.3)
> lib/active_support/notifications/instrumenter.rb:23:in `instrument'
> activesupport (5.2.3) lib/active_support/notifications.rb:168:in
> `instrument'
> actionpack (5.2.3) lib/action_controller/metal/instrumentation.rb:32:in
> `process_action'
> actionpack (5.2.3) lib/action_controller/metal/params_wrapper.rb:256:in
> `process_action'
> activerecord (5.2.3)
> lib/active_record/railties/controller_runtime.rb:24:in `process_action'
> actionpack (5.2.3) lib/abstract_controller/base.rb:134:in `process'
> actionview (5.2.3) lib/action_view/rendering.rb:32:in `process'
> actionpack (5.2.3) lib/action_controller/metal.rb:191:in `dispatch'
> actionpack (5.2.3) lib/action_controller/metal.rb:252:in `dispatch'
> actionpack (5.2.3) lib/action_dispatch/routing/route_set.rb:52:in
> `dispatch'
> actionpack (5.2.3) lib/action_dispatch/routing/route_set.rb:34:in `serve'
> actionpack (5.2.3) lib/action_dispatch/journey/router.rb:52:in `block in
> serve'
> actionpack (5.2.3) lib/action_dispatch/journey/router.rb:35:in `each'
> actionpack (5.2.3) lib/action_dispatch/journey/router.rb:35:in `serve'
> actionpack (5.2.3) lib/action_dispatch/routing/route_set.rb:840:in `call'
> rack (2.0.7) lib/rack/tempfile_reaper.rb:15:in `call'
> rack (2.0.7) lib/rack/etag.rb:25:in `call'
> rack (2.0.7) lib/rack/conditional_get.rb:25:in `call'
> rack (2.0.7) lib/rack/head.rb:12:in `call'
> actionpack (5.2.3)
> lib/action_dispatch/http/content_security_policy.rb:18:in `call'
> rack (2.0.7) lib/rack/session/abstract/id.rb:232:in `context'
> rack (2.0.7) lib/rack/session/abstract/id.rb:226:in `call'
> actionpack (5.2.3) lib/action_dispatch/middleware/cookies.rb:670:in `call'
> activerecord (5.2.3) lib/active_record/migration.rb:559:in `call'
> actionpack (5.2.3) lib/action_dispatch/middleware/callbacks.rb:28:in
> `block in call'
> activesupport (5.2.3) lib/active_support/callbacks.rb:98:in `run_callbacks'
> actionpack (5.2.3) lib/action_dispatch/middleware/callbacks.rb:26:in `call'
> actionpack (5.2.3) lib/action_dispatch/middleware/executor.rb:14:in `call'
> actionpack (5.2.3)
> lib/action_dispatch/middleware/debug_exceptions.rb:61:in `call'
> web-console (3.7.0) lib/web_console/middleware.rb:135:in `call_app'
> web-console (3.7.0) lib/web_console/middleware.rb:30:in `block in call'
> web-console (3.7.0) lib/web_console/middleware.rb:20:in `catch'
> web-console (3.7.0) lib/web_console/middleware.rb:20:in `call'
> actionpack (5.2.3) lib/action_dispatch/middleware/show_exceptions.rb:33:in
> `call'
> railties (5.2.3) lib/rails/rack/logger.rb:38:in `call_app'
> railties (5.2.3) lib/rails/rack/logger.rb:26:in `block in call'
> activesupport (5.2.3) lib/active_support/tagged_logging.rb:71:in `block in
> tagged'
> activesupport (5.2.3) lib/active_support/tagged_logging.rb:28:in `tagged'
> activesupport (5.2.3) lib/active_support/tagged_logging.rb:71:in `tagged'
> railties (5.2.3) lib/rails/rack/logger.rb:26:in `call'
> sprockets-rails (3.2.1) lib/sprockets/rails/quiet_assets.rb:13:in `call'
> actionpack (5.2.3) lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
> actionpack (5.2.3) lib/action_dispatch/middleware/request_id.rb:27:in
> `call'
> rack (2.0.7) lib/rack/method_override.rb:22:in `call'
> rack (2.0.7) lib/rack/runtime.rb:22:in `call'
> activesupport (5.2.3)
> lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
> actionpack (5.2.3) lib/action_dispatch/middleware/executor.rb:14:in `call'
> actionpack (5.2.3) lib/action_dispatch/middleware/static.rb:127:in `call'
> rack (2.0.7) lib/rack/sendfile.rb:111:in `call'
> railties (5.2.3) lib/rails/engine.rb:524:in `call'
> puma (3.12.1) lib/puma/configuration.rb:227:in `call'
> puma (3.12.1) lib/puma/server.rb:660:in `handle_request'
> puma (3.12.1) lib/puma/server.rb:474:in `process_client'
> puma (3.12.1) lib/puma/server.rb:334:in `block in run'
> puma (3.12.1) lib/puma/thread_pool.rb:135:in `block in spawn_thread'
>
>
> I noticed the text near the start of the error/traceback which said
> something about a missing template for this request. How can anything be
> missing at this point ?
>
> Please help a desperate rails rookie.
>
> Thanks.
> ==================
>
> Barry Kimelman
> Winnipeg, Manitoba, Canada
>
>
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