lerna 和 yarn workspace 安装错误

Question

I implemented Lerna and yarn workspaces in my project and when I gonna install packages, it says

error Couldn't find package "@kratos/core@^1.0.1" required by "@kratos/storybook@1.0.1" on the "npm" registry.

Whereas these @kratos/core and @kratos/storybook packages exist in the packages folder and they are local packages.

I tried these commands but facing the below error:

• lerna add @kratos/core --scope @kratos/renderer:
• lerna add @kratos/core packages/renderer

lerna notice cli v3.22.0
lerna info versioning independent
lerna notice filter including "@kratos/renderer"
lerna info filter [ '@kratos/renderer' ]
lerna WARN No packages found where @kratos/core can be added. 

Lerna config file:

{
    "useWorkspaces": true,
    "npmClient": "yarn",
    "packages": ["packages/*"],
    "version": "independent",
    "command": {
        "publish": {
            "ignoreChanges": [
                "test/**/*",
                "*.test.*",
                "*.spec.*",
                "cypress",
                "*.md",
                "scripts",
                "lib",
                "tslint.json",
                "tsconfig.json"
            ]
        },
        "run": {
            "npmClient": "yarn"
        }
    }
}

Thanks, Lerna for having a lot of problems without useful documentation.

Answer 1

1. You need to run lerna bootstrap in order for lerna to create symbolic links for all of your packages/* in node_modules.

2. If your local version of any of your packages, in your case @kratos/core , does not match the version you are referencing in your package.json files, then it will try to import the package from npm. This could be why you are seeing "could not find package on the npm registry"

Answer 2

I ran into this same issue but it was caused by something else. In my scenario, I was trying to link a package like so:

// package B

"dependencies": {
  "@scope/packageA": "*",
}

but Package A had a package.json with version specified as "0.x.0-alpha.1" which was causing Lerna to return a similar error:

"error Couldn't find any versions for "@scope/packageA" that matches "*""

Solution: Package A for us turned out to not be published to our NPM registry under any non-pre-release version. So, the solution was to revert the version string of Package A to be just, "0.x.0" (removed "-alpha.1" prefix) and then re-ran the lerna bootstrap command, and it worked!

Hope this helps:)