lerna publish from-package failed

[wqcstrong]

Current Behavior

➜  page-spy git:(main) lerna version preminor    
lerna notice cli v8.0.2
lerna info versioning independent
lerna info Looking for changed packages since v1.5.7
lerna info version Skipping unversioned private package undefined

Changes:
 - @huolala-tech/page-spy-browser: 1.5.5 => 1.6.0-beta.0
 - @huolala-tech/page-spy-types: 1.5.5 => 1.6.0-beta.0
 - @huolala-tech/page-spy-wechat: 1.5.5 => 1.6.0-beta.0

? Are you sure you want to create these versions? Yes
lerna info execute Skipping releases
lerna info git Pushing tags...
lerna success version finished

➜  page-spy git:(main) lerna publish from-package
lerna notice cli v8.0.2
lerna info versioning independent
lerna ERR! TypeError: Cannot read properties of undefined (reading '0')
lerna ERR!     at npa (/Users/blucas/Code/group-opensource/page-spy/node_modules/pacote/node_modules/npm-package-arg/lib/npa.js:33:25)
lerna ERR!     at FetcherBase.get (/Users/blucas/Code/group-opensource/page-spy/node_modules/pacote/lib/fetcher.js:482:16)
lerna ERR!     at Object.packument (/Users/blucas/Code/group-opensource/page-spy/node_modules/pacote/lib/index.js:18:30)
lerna ERR!     at mapper (/Users/blucas/Code/group-opensource/page-spy/node_modules/lerna/dist/index.js:9082:34)
lerna ERR!     at /Users/blucas/Code/group-opensource/page-spy/node_modules/p-map/index.js:57:28
lerna ERR! lerna Cannot read properties of undefined (reading '0')

Expected Behavior

I can publish above 3 package to npmjs.com successfully.

Failure Logs / Configuration

lerna.json

{
  "$schema": "node_modules/lerna/schemas/lerna-schema.json",
  "version": "independent",
  "npmClient": "yarn",
  "command": {
    "version": {
      "allowBranch": ["main"],
      "preid": "beta"
    }
  }
}

lerna-debug.log

txt0 silly argv {
0 silly argv   _: [ 'publish' ],
0 silly argv   composed: 'publish',
0 silly argv   lernaVersion: '8.0.2',
0 silly argv   '$0': 'node_modules/.bin/lerna',
0 silly argv   bump: 'from-package'
0 silly argv }
1 notice cli v8.0.2
2 verbose packageConfigs Resolving packages based on package.json "workspaces" configuration.
3 verbose rootPath /Users/blucas/Code/group-opensource/page-spy
4 info versioning independent
5 verbose session f0fe18ba80631c8b
6 verbose user-agent lerna/8.0.2/node@v20.10.0+x64 (darwin)
7 verbose git-describe undefined => "@huolala-tech/page-spy-browser@1.6.0-beta.0-1-gd354080"
8 silly git-describe parsed => {"lastTagName":"@huolala-tech/page-spy-browser@1.6.0-beta.0","lastVersion":"1.6.0-beta.0","refCount":"1","sha":"d354080","isDirty":false}
9 silly getProjectsWithUnpublishedPackages
10 error TypeError: Cannot read properties of undefined (reading '0')
10 error     at npa (/Users/blucas/Code/group-opensource/page-spy/node_modules/pacote/node_modules/npm-package-arg/lib/npa.js:33:25)
10 error     at FetcherBase.get (/Users/blucas/Code/group-opensource/page-spy/node_modules/pacote/lib/fetcher.js:482:16)
10 error     at Object.packument (/Users/blucas/Code/group-opensource/page-spy/node_modules/pacote/lib/index.js:18:30)
10 error     at mapper (/Users/blucas/Code/group-opensource/page-spy/node_modules/lerna/dist/index.js:9082:34)
10 error     at /Users/blucas/Code/group-opensource/page-spy/node_modules/p-map/index.js:57:28

Environment

 Environment info:

  System:
    OS: macOS 14.0
    CPU: (8) x64 Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
  Binaries:
    Node: 20.10.0 - ~/.volta/tools/image/node/20.10.0/bin/node
    Yarn: 1.22.19 - ~/.volta/tools/image/yarn/1.22.19/bin/yarn
    npm: 10.2.3 - ~/.volta/tools/image/node/20.10.0/bin/npm
  Utilities:
    Git: 2.39.2 - /usr/bin/git
  npmPackages:
    lerna: ^8.0.0 => 8.0.2 

[wqcstrong]

I try to run lerna publish prerelase in other test repo, and the packages be successful published!

[wqcstrong]

If others encounter the same situation as mine, here is my solution.

What happend?

The demo file structure in my monorepo:

├── lerna.json
├── nx.json
├── package.json
├── packages
│   ├── base
│   ├── is-even
│   └── is-odd
└── yarn.lock

I only want to publish two packages, packages/is-even and packages/is-odd. The packages/base directory contains utility functions and is not intended to be published as a package. Therefore, I have set packages/base as private:

// packages/base/package.json
{
  "private": true,
  "description": "Base utils"
}

Another necessary content occur the issue which should know is "workspaces" in my root package.json:

// package.json
{
  "name": "root",
  "private": true,
  "workspaces": [
    "packages/*"
  ],
  "dependencies": {},
  "devDependencies": {
    "lerna": "^8.0.0",
    "nx": "17.2.8"
  }
}

Deep dive

Well, I thought lerna would filter and exclude packages/base first because they are private. Indeed, lerna does do that, but before excluding them, lerna also reads private packages to obtain metadata information. This is because packages/base matches the definition in the root package.json under workspaces: ["packages/*"]. During the metadata reading process, lerna reads the "name" property of sub-packages, and since packages/base does not define a "name," it leads to the occurrence of this issue.

Solutions

• option 1: add "name" property in packages/base, or
• option 2: update workspaces: ["packages/is-*"] in root package.json;

After the update, lerna publish from-package works properly! 😄