I can install Ruby and Rails, and when I try to make an app I was told that yarn was not installed, so I installed yarn to fix it.
environment Mac Ruby2.6.0 Rails6.1.0
This time I will make it on the desktop, so
$ cd Desktop $Rails new app name
When executed, After a while,
Yarn not installed.
It seems that the app was not created and an error occurred, and yarn is not installed as described above. Is said.
$ brew install yarn $ yarn -v $ yarn install
It seems that it was installed successfully.
I ran rails new again and this time it worked. And when you run rails server, you will see a nostalgic screen. It's been a year and a half?
Hmm, has the Rails version changed? Did the installation of yarn change the Rails version from 6.1.0 to 6.1.1?
$ rails -v Rails 6.1.1
After all it has changed. no problem. I don't know. Now, with a little study of Ruby, let's create the contents of the Rails app.