Conflict error use app router on next.js

[ufoo68]

🐛 Bug Report

On the CLI, I chose Next.js and App router .

? Which template do you want to use? nextjs
...
✔ Would you like to use App Router? (recommended) … Yes

then, happen following error.

🤔 Expected Behavior

Create template on /app directory

😯 Current Behavior

Created template/page and /app.