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9.0.0-rc.4 build - createWebpack(...).pipe is not a function #16316

@intellix

Description

@intellix

🐞 Bug report

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  • build
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Description

A clear and concise description of the problem...

ng build --prod gives a createWebpack(...).pipe error when trying to build after: ng update @angular/cli @angular/core --force. Serving the project works perfectly fine.

🔬 Minimal Reproduction

ng build --prod

🔥 Exception or Error

[error] TypeError: createWebpack(...).pipe is not a function
    at Object.runWebpack (/Users/dom/Projects/fe/node_modules/@angular-devkit/build-angular/node_modules/@angular-devkit/build-webpack/src/webpack/index.js:20:34)
    at SwitchMapSubscriber.project (/Users/dom/Projects/fe/node_modules/@angular-devkit/build-angular/src/browser/index.js:128:32)
    at SwitchMapSubscriber._next (/Users/dom/Projects/fe/node_modules/rxjs/internal/operators/switchMap.js:49:27)
    at SwitchMapSubscriber.Subscriber.next (/Users/dom/Projects/fe/node_modules/rxjs/internal/Subscriber.js:66:18)
    at /Users/dom/Projects/fe/node_modules/rxjs/internal/util/subscribeToPromise.js:7:24

🌍 Your Environment

Angular CLI: 9.0.0-rc.4
Node: 12.13.1
OS: darwin x64

Angular: 9.0.0-rc.4
... animations, cli, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... platform-server, router
Ivy Workspace: Yes

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.803.14
@angular-devkit/build-angular     0.900.0-rc.4
@angular-devkit/build-optimizer   0.900.0-rc.4
@angular-devkit/build-webpack     0.900.0-rc.4
@angular-devkit/core              8.3.14
@angular-devkit/schematics        8.3.14
@angular/cdk                      8.2.3
@angular/flex-layout              8.0.0-beta.27
@angular/material                 8.2.3
@ngtools/webpack                  9.0.0-rc.4
@nguniversal/common               8.1.1
@nguniversal/express-engine       8.1.1
@schematics/angular               8.3.14
@schematics/update                0.900.0-rc.4
rxjs                              6.5.3
typescript                        3.6.4
webpack                           4.41.2

I'm not sure if you have enough to debug here. Didn't find any related issue so am creating this with all the info I have. I can debug further with some guidance.

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