angular: Fail to upgrade to 4.0.0-rc.1

@julianobrasil got the same problem Could not resolve module @angular/router/src/router_config_loader Did you resolve the issue?

The first compile error is different from the others (see bellow: it’s a router_config_loader error). From the second error and on, they are all similar, just changing the package part (core, common etc).

ERROR in Could not resolve module @angular/router/src/router_config_loader

ERROR in ./src/$$_gendir/app/app.module.ngfactory.ts
Module not found: Error: Can't resolve '../../../@angular/core' in 'E:\xxxxx\src\$$_gendir\app'
 @ ./src/$$_gendir/app/app.module.ngfactory.ts 12:0-50
 @ ./src/main.ts
 @ multi ./src/main.ts

you should make sure to update @angular/compiler-cli too in your package.json as the latest version contains

ROUTER_MODULE_PATH = '@angular/router';

@Delagen that’s what we’re explicitly trying to avoid, actually. There should not be breakages from existing component libraries from 2.4.x when upgrading to 4.0.

The original issue here appears to be resolved. Please open a new issue if you can narrow it down to a specific bug.

Was wondering where this was coming from. I did a grep inside my project and the only instance of router_config_loader was inside angular/compiler-cli:

node_modules/@angular/compiler-cli/src/ngtools_impl.js:var ROUTER_MODULE_PATH = '@angular/router/src/router_config_loader';

Edit: Yep, I have an old compiler-cli

@BaconLord Nop. I saw this other issue #14513 that shows an error message pointing to problems relating to ngfactory.ts, but found nothing about this particular issue.

@aitboudad so it is an issue concerning the compiler? I don’t have any import like @angular/router/src/router_config_loader.

angular now use Flat ES Modules which means using @angular/router/src/router_config_loader path is not possible anymore

Before:

import { ROUTES } from "@angular/router/src/router_config_loader";

After:

import { ROUTES } from "@angular/router";

My mistake. It was just a wrong import statement. But now I see a lot of messages like “ERROR in ./src/$$_gendir/app/app.component.ngfactory.ts”. I’m gonna check them out.