[turborepo] - turbo gen workspace >>> r.flatMap is not a function

[solomon-bush]

What version of Turborepo are you using?

1.10.7

What package manager are you using / does the bug impact?

npm

What operating system are you using?

Mac

Describe the Bug

Command

~/Workspaces/LogHarvestor/log-harvestor ❯ turbo gen workspace              

Error

>>> Unexpected error. Please report it as a bug:
r.flatMap is not a function

Expected Behavior

Trying to follow this guide -> https://turbo.build/repo/docs/core-concepts/monorepos/code-generation

To Reproduce

run turbo gen workspace from root of a turbo repo

ENV information:

OS: Apple M1 Pro - macOS: 13.4.1 (22F82)
NPM: 9.8.0
NODE: 20.4.0
TURBO: 1.10.7

Reproduction Repo

No response

[chris-olszewski]

Hi @solomon-bush, can you include the value of your workspaces field in your root package.json?

[dmaevac]

I see this issue too, I think this could caused by workspaces being an object when properties like nohoist are used, for example:

  "workspaces": {
    "packages": [
      "packages/*"
    ],
    "nohoist": [
      "**/jest-extended",
      "**/jest-extended/**"
    ]
  },

There looks to be a PR pending that aims to resolve the issue: #5439

[tknickman]

Available now in turbo@canary.

To test with gen, you'll need to also pass one additional arg - npx turbo@canary gen --tag canary