npx @backstage/create-app - [Errno 2] No such file or directory: 'install'

Expected Behavior

Install backstage

Actual Behavior

npx @backstage/create-app breaks after selection of the database.

? Enter a name for the app [required] backstage-app
? Select database for the backend [required] SQLite

Creating the app...

 Checking if the directory is available:
  checking      backstage-app ✔

 Creating a temporary app directory:
  creating      temporary directory ✔

 Preparing files:
  copying       .dockerignore ✔
  copying       .eslintrc.js ✔
  templating    .gitignore.hbs ✔
  copying       .prettierignore ✔
  copying       README.md ✔
  copying       app-config.production.yaml ✔
  templating    app-config.yaml.hbs ✔
  templating    backstage.json.hbs ✔
  templating    catalog-info.yaml.hbs ✔
  copying       lerna.json ✔
  templating    package.json.hbs ✔
  copying       tsconfig.json ✔
  copying       .eslintrc.js ✔
  copying       Dockerfile ✔
  copying       README.md ✔
  templating    package.json.hbs ✔
  copying       index.test.ts ✔
  copying       index.ts ✔
  copying       types.ts ✔
  copying       app.ts ✔
  copying       auth.ts ✔
  copying       catalog.ts ✔
  copying       proxy.ts ✔
  copying       scaffolder.ts ✔
  templating    search.ts.hbs ✔
  copying       techdocs.ts ✔
  copying       .eslintrc.js ✔
  copying       cypress.json ✔
  templating    package.json.hbs ✔
  copying       android-chrome-192x192.png ✔
  copying       apple-touch-icon.png ✔
  copying       favicon-16x16.png ✔
  copying       favicon-32x32.png ✔
  copying       favicon.ico ✔
  copying       index.html ✔
  copying       manifest.json ✔
  copying       robots.txt ✔
  copying       safari-pinned-tab.svg ✔
  copying       .eslintrc.json ✔
  copying       app.js ✔
  copying       App.tsx ✔
  copying       apis.ts ✔
  copying       index.tsx ✔
  copying       setupTests.ts ✔
  copying       App.test.tsx ✔
  copying       LogoFull.tsx ✔
  copying       LogoIcon.tsx ✔
  copying       Root.tsx ✔
  copying       index.ts ✔
  copying       EntityPage.tsx ✔
  copying       SearchPage.tsx ✔

 Moving to final location:
  moving        backstage-app ✔

 Building the app:
00h00m00s 0/0: : ERROR: [Errno 2] No such file or directory: 'install'
  executing     yarn install ✖

Error: Could not execute command yarn install

It seems that something went wrong when creating the app 🤔

🔥  Failed to create app!

Steps to Reproduce

execute npx @backstage/create-app

Context

trying to install Backstage

Your Environment

Ubuntu on WSL2 Windows 11

[sp0tt13]

It seems yarn is the problem somehow. I had followed the instructions on the backstage.io website, which sent me to https://classic.yarnpkg.com/en/docs/install. After installing yarn, it gave me what seemed to be the latest version; $ npm info yarn version 1.22.18 $ yarn --version 0.32+git The error in my previous message seemed to be a yarn error, so I looked for an alternative and found https://dev.to/bonstine/installing-yarn-on-wsl-38p2 which suggested I install yarn with curl -o- -L https://yarnpkg.com/install.sh | bash After installing that way, I now get yarn --version giving 1.22.18 instead of 0.32+git, but more importantly, it is building the my-backstage-app without error.

Post Update: This explains the situation a bit better: https://stackoverflow.com/questions/53471063/yarn-error-there-are-no-scenarios-must-have-at-least-one

[blabaschin]

I had the same issues. It was a headache. I had to uninstall all of my yarn as above but in addition I had to brew install python, cmake, and gcc. I suggest someone looks into adding these to the instructions.