Error: Cannot find module '@angular/compiler-cli/src/perform_compile' when running ng-packagr

Question

I have a new install of windows and I'm trying to run ng-packagr for the first time.

I'm getting the error:

Error: Cannot find module '@angular/compiler-cli/src/perform_compile'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (C:\Users\MyUser\AppData\Roaming\npm\node_modules\ng-packagr\lib\ts\tsconfig.js:3:12)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)

I did install the angular CLI by running

npm install -g @angular/cli@latest

It's running v6.0.8

My ng-package.json:

{
    "$schema": "./node_modules/ng-packagr/ng-package.schema.json",
    "lib": {
        "entryFile": "index.ts",
        "externals": {
            "moment": "moment"
        }
    }
}

What am I missing here?

Answer 1

Hey recently solved a similar problem you can try following:

1. Install latest node.js (Uninstall the previous version)

2. Install the latest angular-cli globally

   npm uninstall -g angular-cli
   npm cache clean or npm cache verify (if npm > 5)
   npm install -g @angular/cli@latest
   

3. Create a new project with angular-cli ng new projectname

4. Copy your files (modules, component, directive etc.) into newly created project from your old one

5. Install ng-packagr npm i ng-packagr

6. Edit your package.json (root project)

   "scripts": {
       "packagr": "ng-packagr -p ng-package.json"
   }
   

   Remove dependencies or move all to peerDependencies since you are going to create a feature module

7. ng-package.json (may be different in your case but you can try this)

   {
     "$schema": "./node_modules/ng-packagr/ng-package.schema.json",
     "lib": {
       "entryFile": "public_api.ts"
     }
   }
   

8. public_api.ts (update relative path to your module)

   export * from './src/app/modules/yourmodulename/yourmodulename.module
   

And that's it now you can run npm run packagr it should work and generate dist folder.

You can publish on npmjs using npm publish dist

That's how I resolved it.