No Route matches "say/hello" when route exists

I'm trying to create a very simple Hello, world program in RoR, but when I go to view the url http://localhost:3000/say/hello I'm getting the error message No route matches: "say/hello"

I started with: rails generate controller Say hello goodbye which lists route get "say/hello"

Also: I'm having this problem which is probably related. When I go to write some basic html in one of the files that is clearly listed as existing I get this:

I write this:

~/work/demo$ /app/views/say/hello.html.erb

Get this error message in return:

bash开发者_如何学运维: /app/views/say/hello.html.erb: No such file or directory

What's going on here? I'm getting these instructions straight from Agile Development with Rails and it's so simple.

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With the details you've given I'm not sure why your route can't be found.

However, I believe the reason you're experiencing the no such file or directory error is because you're typing /app/views/say/hello.html.erb. Try removing the leading slash, so that it reads app/views/say/hello.html.erb. Bash appears to be parsing the former path as an absolute path, instead of a path relative to your current working directory.

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What is this command?

~/work/demo$ /app/views/say/hello.html.erb

you should be using your web browser: http://localhost:3000/say/hello