[bug]: Shadcn init does not work with the default installation of next.js with pnpm

[SensoryDavide]

Describe the bug

When using the default command to start a new next.js project via pnpm it adds a pnpm-workspace.yaml file with a single packages entry (It seems like the main purpose of it is to add ignoredBuiltDependencies):

packages:
  - .
ignoredBuiltDependencies:
  - sharp
  - unrs-resolver

This results in an error when running shadcn init:

Something went wrong. Please check the error below for more details.
If the problem persists, please open an issue on GitHub.

Command failed with exit code 1: pnpm add clsx tailwind-merge class-variance-authority lucide-react

\u2009ERR_PNPM_ADDING_TO_ROOT\u2009 Running this command will add the dependency to the workspace root, which might not be what you want - if you really meant it, make it explicit by running this command again with the -w flag (or --workspace-root). If you don't want to see this warning anymore, you may set the ignore-workspace-root-check setting to true.

It seems like shadcn does not detect it's technically in the root of a workspaces project and pnpm doesn't allow to implicitly install anything in the root.

I've labeled this as a bug, as I think just adding shadcn to the default next.js installation should not result in an error.

Affected component/components

init

How to reproduce

1. pnpm create next-app@latest my-app --yes
2. cd my-app
3. pnpm dlx shadcn@latest init

Codesandbox/StackBlitz link

No response

Logs

System Info

Not relevant

Before submitting

• I've made research efforts and searched the documentation
• I've searched for existing issues

[eugenepolyakv]

Faced the same issue today. Installing a bit older version of next.js also solves the problem. 16.0.10 is the latest, yet safe version (due to the latest vulnerabilities discovered by next.js team) of next.js which deliver initialization of shadcn

Command: pnpm create next-app@16.0.10 project-name --yes

And then: pnpm dlx shadcn@latest init

[vivindeena]

similiar setup to OP, but with vite

[yeasin2002]

working on my device:

PS C:\Yeasin\experiment\my-app> pnpm dlx shadcn@latest init
 WARN  1 deprecated subdependencies found: node-domexception@1.0.0
Packages: +336
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Progress: resolved 336, reused 336, downloaded 0, added 336, done
╭ Warning ───────────────────────────────────────────────────────────────────────────────────╮
│                                                                                            │
│   Ignored build scripts: msw@2.12.4.                                                       │
│   Run "pnpm approve-builds" to pick which dependencies should be allowed to run scripts.   │
│                                                                                            │
╰────────────────────────────────────────────────────────────────────────────────────────────╯
✔ Preflight checks.
✔ Verifying framework. Found Next.js.
✔ Validating Tailwind CSS config. Found v4.
✔ Validating import alias.
√ Which color would you like to use as the base color? » Neutral
✔ Writing components.json.
✔ Checking registry.
✔ Updating CSS variables in app\globals.css
✔ Installing dependencies.
✔ Created 1 file:
  - lib\utils.ts

Success! Project initialization completed.
You may now add components.

System Info

OS: Windows 11 
next version installed: 16.1.1