`yarn create next-app` fails when directory is a workspace

What version of Next.js are you using?

12.0.7

What version of Node.js are you using?

16.13.1

What browser are you using?

Chrome

What operating system are you using?

macOS

How are you deploying your application?

next export

Describe the Bug

With the following project structure:

.
├── node_modules
├── package.json
├── sites # this is a workspace
└── yarn.lock

And with the following package.json:

{
  "name": "workspace-test",
  "version": "1.0.0",
  "private": true,
  "license": "MIT",
  "workspaces": [
    "sites/*"
  ]
}

Running this command fails:

yarn create next-app sites/hello-world

With this following output:

yarn create v1.22.17
[1/4] 🔍  Resolving packages...
[2/4] 🚚  Fetching packages...
[3/4] 🔗  Linking dependencies...
[4/4] 🔨  Building fresh packages...
success Installed "create-next-app@12.0.7" with binaries:
      - create-next-app
[##] 2/2Creating a new Next.js app in /Users/karbi/dev/workspace-test/sites/hello-world.

Using yarn.

Installing dependencies:
- react
- react-dom
- next

yarn add v1.22.17
warning Missing version in workspace at "/Users/karbi/dev/workspace-test/sites/asd", ignoring.
warning Missing version in workspace at "/Users/karbi/dev/workspace-test/sites/hello-world", ignoring.
error An unexpected error occurred: "Cannot read properties of undefined (reading 'manifest')".
info If you think this is a bug, please open a bug report with the information provided in "/Users/karbi/dev/workspace-test/sites/hello-world/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

Expected Behavior

I would expect that following command would produce a successful boilerplate without error:

yarn create next-app sites/hello-world

Additionally, running the following command works successfully when not targeting a workspace:

yarn create next-app hello-world

To note, using npx works successfully:

npx create-next-app sites/hello-world

To Reproduce

Clone this repository and run the following command in the project root:

yarn create next-app sites/hello-world

[karbica]

@MISSOURI10101 Yep, removing the version number seems to be causing the issue. Also, the version field was present in v12.0.1 but was removed in v12.0.2.

Here is a related issue to workspaces not having their dependencies installed if their version is omitted. It was fixed in yarn@v2 but still broken for yarn@v1.

I believe version should be placed back into the packageJson object with a 0.0.0 (or 0.1.0, as npx does) value for backwards compatibility. And if the developer wants to omit it, then they are free to do so.

Also to note, I now see the reason why npx works is because it defaults with 0.1.0 as the version in the package.json upon app creation.

[github-actions[bot]]

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