rails new app is not created with app name

Corresponding part

Rails Tutorial Chapter 3 $ rails _6.0.3_ new sample_app When I run, an error occurs and the app is not created.

Expected behavior

The $ rails _6.0.3_ new sample_app command works fine and the app is created.

What I worked on

$ rails _6.0.3_ new sample_app

Yarn not installed. Please download and install Yarn from https://yarnpkg.com/lang/en/docs/install/

It seems that Yarn is not installed. I was asked to install Yarn. So, install Yarn with the Homebrew brew command.

 $ brew install yarn

 bash: brew: command not found

Next, I was told that there is no brew command. I think that there is no Homebrew, so I will install Homebrew.

 $ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

 Warning: /home/linuxbrew/.linuxbrew/bin is not in your PATH.

I was told that my PATH wasn't working. So let's go through the PATH.

$ echo 'export PATH="/home/linuxbrew/.linuxbrew/bin:$PATH"' >>  ~/.bashrc
source ~/.bashrc

Homebrew is now installed and Yarn is also installed.

$ rails _6.0.3_ new sample_app

The app has been created properly! !!

Conclusion

In order to create an app with the $ rails new app name command, you need to install Yarn. You can also install Yarn with npm, but you can install it with Homebrew.

reference

https://qiita.com/jun3030/items/afcd3287285a57b32ccb

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