rails constantly failing with http 406 error

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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