Angular-cli: can't serve after upgrade to 1.0.0-beta.25.5

[alyahmedaly]

Please provide us with the following information:

OS?

windows 10

Versions.

__ _ _ __ __ _ _ _ | | __ _ _ __ ___ | |(_)
/ _|| '_ \ / _ || | | || | / _` || '__|_____ / __|| || |
| (_| || | | || (_| || |_| || || (_| || | |_____|| (__ | || |
__,_||_| |_| __, | __,_||_| __,_||_| ___||_||_|
|___/
angular-cli: 1.0.0-beta.25.5
node: 6.9.2
os: win32 x64
@angular/common: 2.4.3
@angular/compiler: 2.4.3
@angular/core: 2.4.3
@angular/forms: 2.4.3
@angular/http: 2.4.3
@angular/platform-browser: 2.4.3
@angular/platform-browser-dynamic: 2.4.3
@angular/router: 3.4.3
@angular/compiler-cli: 2.4.3

Repro steps.

ng serve --port 3000 --open true

The log given by the failure.

Uncaught TypeError: Cannot convert undefined or null to object
at hasOwnProperty ()
at Function.__webpack_require__.o (inline.bundle.js:136)
at Object. (main.bundle.js:1827)
at __webpack_require__ (inline.bundle.js:53)
at Object. (main.bundle.js:4865)
at __webpack_require__ (inline.bundle.js:53)
at Object. (main.bundle.js:4654)
at __webpack_require__ (inline.bundle.js:53)
at Object. (main.bundle.js:14615)
at __webpack_require__ (inline.bundle.js:53)
at webpackJsonpCallback (inline.bundle.js:24)
at main.bundle.js:1

my bundle is valid
Hash: 82c35e8cba93eecbbd9b
Time: 8538ms
chunk {0} main.bundle.js, main.bundle.map (main) 721 kB {3} [initial]
chunk {1} styles.bundle.js, styles.bundle.map (styles) 10.1 kB {4} [initial] [rendered]
chunk {2} scripts.bundle.js, scripts.bundle.map (scripts) 375 kB {4} [initial]
chunk {3} vendor.bundle.js, vendor.bundle.map (vendor) 5.69 MB [initial]
chunk {4} inline.bundle.js, inline.bundle.map (inline) 0 bytes [entry]
webpack: bundle is now VALID.

[alyahmedaly]

issue resolved by replacing
import * as fromInternal from './internal';
fromInternal.helpReducer

with
import { helpReducer } from './internal/help-center';

any help way this was happens

[ablain]

Hi @alyahmedaly,

I have the same issue, but I can't figure out where it's coming from.

bootstrap 64d7cd1…:135 Uncaught TypeError: Cannot convert undefined or null to object
    at hasOwnProperty (<anonymous>)
    at Function.__webpack_require__.o (bootstrap 64d7cd1…:135)
    at Object.385 (cell.transformer.ts:64)
    at __webpack_require__ (bootstrap 64d7cd1…:52)
    at Object.359 (environment.ts:16)
    at __webpack_require__ (bootstrap 64d7cd1…:52)
    at Object.361 (campaign.service.ts:11)
    at __webpack_require__ (bootstrap 64d7cd1…:52)
    at Object.581 (app.menu.ts:18)
    at __webpack_require__ (bootstrap 64d7cd1…:52)
    at Object.461 (src async:7)
    at __webpack_require__ (bootstrap 64d7cd1…:52)
    at Object.864 (main.bundle.js:3833)
    at __webpack_require__ (bootstrap 64d7cd1…:52)
    at webpackJsonpCallback (bootstrap 64d7cd1…:23)

How did you manage to find where was you issue? Also I don't have any import * in my code.

[alyahmedaly]

• disabled source map using -sm false
• enabled chrome pause on exceptions
  start debugging and found "helpReducer" came with null
  i guessed it :)

for you the issue seems to be related to an import in app.menu.ts try to deep import campaign.service.ts
sorry for my bad english

[petercn]

The root cause of this issue is a bug in webpack 2.2.0-rc3 which has now been fixed in RC4: https://github.com/webpack/webpack/issues/3895

@hansl @filipesilva I modified my local angular-cli to use webpack 2.2.0-rc4 and it cleared the run time error perfectly. Many ng2 devs on github and gitter are experiencing these issues from the same root cause after upgrading to ng cli beta 25.5. Can you guys fast track this webpack dependency upgrade in the ng CLI codebase?

[filipesilva]

@petercn added https://github.com/angular/angular-cli/pull/4008

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