Error when running ang8

Type of Issue

[ X ] Bug Report
[ ] Feature Request

Description

_A bug: I have a plugin working with ang7

• https://github.com/jsGanttImproved/ng-gantt

but when I try to upgrade to 8, i receive an error

• https://github.com/jsGanttImproved/ng-gantt/tree/ang8

Here is the error on travis:

• https://travis-ci.com/jsGanttImproved/ng-gantt/builds/121763209

ng-packagr

/ng-gantt/node_modules/tslib/tslib.js:65
        extendStatics(d, b);
        ^

TypeError: Object prototype may only be an Object or null: undefined
    at setPrototypeOf (<anonymous>)
    at Object.__extends (/ng-gantt/node_modules/tslib/tslib.js:65:9)
    at /ng-gantt/node_modules/@angular/compiler-cli/src/ngtsc/indexer/src/template.js:115:17
    at /ng-gantt/node_modules/@angular/compiler-cli/src/ngtsc/indexer/src/template.js:314:6
    at /ng-gantt/node_modules/@angular/compiler-cli/src/ngtsc/indexer/src/template.js:3:17
    at Object.<anonymous> (/ng-gantt/node_modules/@angular/compiler-cli/src/ngtsc/indexer/src/template.js:9:3)
    at Module._compile (internal/modules/cjs/loader.js:759:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:770:10)
    at Module.load (internal/modules/cjs/loader.js:628:32)
    at Function.Module._load (internal/modules/cjs/loader.js:555:12)
    at Module.require (internal/modules/cjs/loader.js:666:19)
    at require (internal/modules/cjs/helpers.js:16:16)
    at /ng-gantt/node_modules/@angular/compiler-cli/src/ngtsc/indexer/src/transform.js:20:22
    at /ng-gantt/node_modules/@angular/compiler-cli/src/ngtsc/indexer/src/transform.js:10:17
    at Object.<anonymous> (/ng-gantt/node_modules/@angular/compiler-cli/src/ngtsc/indexer/src/transform.js:16:3)
    at Module._compile (internal/modules/cjs/loader.js:759:30)

How To Reproduce

_A bug: Clone this branch

• https://github.com/jsGanttImproved/ng-gantt/tree/ang8

Try to run ng-packagr -p ng-gantt/package.json

Expected Behaviour

_A bug: Expected that this would build the same that happens in master branch, that is using angular 7 version.

Here the last build that was passing:

https://travis-ci.com/jsGanttImproved/ng-gantt/builds/121690974

Version Information

$ node_modules/.bin/ng-packagr --version

I cant run this because the error occurs when run ng-packagr

This was the ang7 version:

node_modules/.bin/ng-packagr --version
ng-packagr:            4.4.5
@angular/compiler:     7.1.4
rollup:                0.67.4
tsickle:               0.27.2
typescript:            3.1.1

[brq-cr]

dependencies/@angular/cli and devDependencies/@angular/compiler-cli both must have the same version number.

[alan-agius4]

The problem seems to be that you have multiple @angular/compiler defined as your dependencies, and also your @angular/<package> versions are not aligned.

Use this package.json

{
  "name": "ng-gantt",
  "version": "0.0.0",
  "private": true,
  "license": "MIT",
  "scripts": {
    "start": "ng serve",
    "build": "npm run copy && ng build",
    "copy": "cp -R dist/ng-gantt src/ng-gantt",
    "build:app": "npm run copy && ng build --project packages && rimraf src/ng-gantt",
    "build:lib": "rimraf dist && ng-packagr -p ng-gantt/package.json",
    "publish-npm": "npm run build:lib && cd dist/ng-gantt && npm publish",
    "reload": "npm run build:lib && npm run build && npm run start",
    "dev": "cd dist/app && http-server",
    "test": "ng test dev --watch=false && npm run e2e",
    "unittest": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "kill": "kill -9 $(lsof -t -i:4200)",
    "reinstall": "rm package-lock.json && rm -rf node_modules && npm i",
    "sass:rebuild": "npm rebuild node-sass"
  },
  "dependencies": {
    "@angular/common": "~8.2.0",
    "@angular/compiler": "~8.2.0",
    "@angular/core": "~8.2.0",
    "@angular/forms": "~8.2.0",
    "@angular/http": "^7.2.15",
    "@angular/platform-browser": "~8.2.0",
    "@angular/platform-browser-dynamic": "~8.2.0",
    "@angular/router": "~8.2.0",
    "core-js": "^2.4.1",
    "rxjs": "^6.4.0",
    "webpack": "^4.16.1",
    "zone.js": "^0.9.0",
    "jsgantt-improved": "^2.4.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.802.0",
    "@angular/cli": "~8.2.0",
    "@angular/compiler-cli": "~8.2.0",
    "@angular/language-service": "~8.2.0",
    "@types/jasmine": "3.3.8",
    "@types/node": "~10.1.0",
    "codelyzer": "~5.0.0",
    "cpr": "^3.0.0",
    "jasmine": "^3.3.0",
    "jasmine-core": "^3.3.0",
    "jasmine-spec-reporter": "^4.2.1",
    "karma": "~4.1.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^2.0.0",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.4.0",
    "protractor": "~5.4.0",
    "rimraf": "^2.6.1",
    "ts-node": "^8.0.0",
    "tslib": "^1.9.0",
    "tslint": "~5.15.0",
    "ng-packagr": "4.4.5",
    "rollup": "0.67.4",
    "tsickle": "^0.36.0",
    "typescript": "~3.5.0"
  }
}

Also it is important to highlight that in ng-packagr version 4.x, Angular version 8 is not supported. Angular version 8 is supported by ng-packagr 5+