Updating to Angular 5 and the latest ng-packagr gives library build errors Cannot read property 'type' of undefined

Type of Issue

[*] Bug Report
[ ] Feature Request

Description

I have updated angular to 5.0 (cli - 1.5.0). Angular suggests to update typescript to version ‘>=2.4.2 & <2.5.0’

but when i Build my library with “build”: “ng-packagr -p ng-package.json”, it gives me an error

BUILD ERROR Cannot read property ‘type’ of undefined TypeError: Cannot read property ‘type’ of undefined - this is with the node_modules typescript.js file.

I can get rid of this error by updating typescript to latest i.e, 2.6.1, but then angular gives an build warning

build warning -> angular/compiler-cli@5.0.0 requires typescript@‘>=2.4.2 <2.5.0’ but 2.6.1 was found instead. Using this version can result in undefined behaviour and difficult to debug problems.

How To Reproduce

update ng-packagr to latest version update angular to 5.0

Then build your package with “build”: “ng-packagr -p ng-package.json”

Expected Behaviour

Should be working fine typescript@‘>=2.4.2 <2.5.0’

Version Information

ng-packagr: "^1.5.0"
node: v7.7.2
@angular: v5.0.0
 rxjs: ^5.4.2,
 zone.js: 0.8.14

[minuz]

I found what was wrong on our package. We had one import { Observable } from 'rxjs'; replaced that with

import { Observable } from "rxjs/Observable";
import 'rxjs/add/observable/of';
import 'rxjs/add/operator/mergeMap';

My version info:

        "versions": {
            "angular": "5.0.1",
            "angularCli": "1.5.0",
            "ngPackagr": "1.6.0-rc.0",
            "coreJs": "2.5.1",
            "zoneJs": "0.8.18",
            "rxJs": "5.5.2",
            "typescript": "2.4.2"
        }

And this is working fine.

[Anirudh-Konduri]

Hi @dherges

Thanks for your response.

I have tried with both the versions. I have typescript v2.4.2

with v1.5.1 i get the same error, BUILD ERROR Cannot read property 'type' of undefined TypeError: Cannot read property 'type' of undefined

with v1.6.0-rc.0, i get a different error now, BUILD ERROR ENOENT: no such file or directory, open '/Library/WebServer/istweb/Documents/supporting-apps/istweb-core/src/istweb-core/.ng_pkg_build/@ccs-istweb-core/ts/istweb-core.js' Error: ENOENT: no such file or directory, open '/Library/WebServer/istweb/Documents/supporting-apps/istweb-core/src/istweb-core/.ng_pkg_build/@ccs-istweb-core/ts/istweb-core.js'