rails g install doesnt work, just returns usage - ruby-on-rails-5.1

Question

I'm trying to install blazer and using rails, it seems that my generate command is missing... I'm a bit of a noob when it comes to RoR and Ruby in general. This is my output.
root#456a4f4bd0b1:/blazer-app# bundle exec rails g blazer:install
Usage:
rails new APP_PATH [options]
Options:
-r, [--ruby=PATH] # Path to the Ruby binary of your choice
I'm running the following:
root#456a4f4bd0b1:/blazer-app# gem list
*** LOCAL GEMS ***
actioncable (5.1.2, 5.0.2)
actionmailer (5.1.2, 5.0.2)
actionpack (5.1.2, 5.0.2)
actionview (5.1.2, 5.0.2)
activejob (5.1.2, 5.0.2)
activemodel (5.1.2, 5.0.2)
activerecord (5.1.2, 5.0.2)
activesupport (5.1.2, 5.0.2)
arel (8.0.0, 7.1.4)
bigdecimal (default: 1.2.8)
blazer (1.8.0)
builder (3.2.3)
bundler (1.13.6)
chartkick (2.2.4)
concurrent-ruby (1.0.5)
did_you_mean (1.0.0)
errbase (0.0.3)
erubi (1.6.1)
erubis (2.7.0)
factory_girl (4.8.0)
factory_girl_rails (4.8.0)
globalid (0.4.0)
i18n (0.8.6)
io-console (default: 0.4.5)
json (default: 1.8.3)
loofah (2.0.3)
mail (2.6.6)
method_source (0.8.2)
mime-types (3.1)
mime-types-data (3.2016.0521)
mini_portile2 (2.2.0)
minitest (5.10.2, 5.8.3)
net-telnet (0.1.1)
nio4r (2.1.0)
nokogiri (1.8.0)
power_assert (0.2.6)
psych (default: 2.0.17)
rack (2.0.3)
rack-test (0.6.3)
rails (5.1.2, 5.0.2)
rails-dom-testing (2.0.3)
rails-html-sanitizer (1.0.3)
railties (5.1.2, 5.0.2)
rake (10.5.0, 10.4.2)
rdoc (default: 4.2.1)
rubygems-update (2.6.8)
safely_block (0.2.0)
sprockets (3.7.1)
sprockets-rails (3.2.0)
test-unit (3.1.5)
thor (0.19.4)
thread_safe (0.3.6)
tzinfo (1.2.3)
websocket-driver (0.6.5)
websocket-extensions (0.1.2)
root#456a4f4bd0b1:/blazer-app# rails -v
Rails 5.1.2
root#456a4f4bd0b1:/blazer-app# ruby -v
ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-linux]
Current tree structure and present working directory
root#456a4f4bd0b1:# tree -L 2
.
|-- CHANGELOG.md
|-- Gemfile
|-- Gemfile.lock
|-- LICENSE.txt
|-- README.md
|-- Rakefile
|-- app
| |-- assets
| |-- controllers
| |-- helpers
| |-- mailers
| |-- models
| `-- views
|-- blazer.gemspec
|-- config
| `-- routes.rb
|-- false
|-- lib
| |-- blazer
| |-- blazer.rb
| |-- generators
| `-- tasks
`-- pkg
`-- blazer-1.8.0.gem
I've tried removing my Gemfile.lock running bundle install and bundle update with the same output for rails.
What's weird is that I also tried running the rails db:migrate command, and rails isn't aware of the task!

Answer 1

are you in the rails app?
aka not the directory you made it, but you cd into the file after
rails new Appname
i think your in the directory and not the actual rails file