Platform: e not a function / e.lift not a function when building for prod

[bjornharvold]

Minimal reproduction of the bug/regression with instructions:

Repo that shows the error.
https://github.com/bjornharvold/ngrx-prod-issue

• Verify that it works with "ng serve" by running ./runDeveloper.sh
• Verify that it does not work when building to prod with ./buildDeveloperProd.sh. (run static assets on some server)

Expected behavior:

Have spent the whole day trying to figure out why ngrx is not working when building a production bundle. I have a working SPA w ngrx working in production but I cannot deploy an update because the new version doesn't work and I cannot figure out what it is.

I've stripped down the project and put it in the repo above. Please advise.

Versions of NgRx, Angular, Node, affected browser(s) and operating system(s):

Angular CLI: 8.3.20
Node: 12.13.1
OS: darwin x64
Angular: 8.2.14
... animations, common, compiler, compiler-cli, core, elements
... forms, language-service, platform-browser
... platform-browser-dynamic, router, service-worker

Package Version

@angular-devkit/architect 0.803.20
@angular-devkit/build-angular 0.803.20
@angular-devkit/build-ng-packagr 0.803.20
@angular-devkit/build-optimizer 0.803.20
@angular-devkit/build-webpack 0.803.20
@angular-devkit/core 8.3.20
@angular-devkit/schematics 8.3.20
@angular/cdk 8.2.3
@angular/cli 8.3.20
@angular/flex-layout 8.0.0-beta.27
@angular/material 8.2.3
@angular/pwa 0.803.20
@ngtools/webpack 8.3.20
@schematics/angular 8.3.20
@schematics/update 0.803.20
ng-packagr 5.7.1
rxjs 6.5.3
typescript 3.5.3
webpack 4.39.2
ngrx 8.5.2

I would be willing to submit a PR to fix this issue

[ ] Yes (Assistance is provided if you need help submitting a pull request)
[x] No

[arangelp]

Hi, my platform in production is experiencing the same issue. Could it be a dependency of a library that changed?

[erodriguezh]

Confirming the issue

[timdeschryver]

Is there a dependency that is updated recently @bjornharvold?

[timdeschryver]

Seems related to ofType, leave these out and it does work ... not sure why.

[markhus-aurelius]

Also having the same issue with our prod build. Looks like an action string is triggering the 'not a function' error

[brandonroberts]

This was a bug in an upstream package that has been fixed. Pin the terser package to 4.4.0 or 4.4.2 as a workaround.

https://github.com/angular/angular/pull/34179

[bjornharvold]

@brandonroberts Great detective work!! My eyes were burning last night after having tried to resolve this one. How did you figure this one out? Yes, @timdeschryver - the only dep update was Angular CLI 8.3.20.

[brandonroberts]

😉 Whenever I see errors that point back to build optimizer, its usually an upstream issue with the CLI, as we haven't changed the way we package and distribute the libraries. I reached out to the CLI team, and they pointed me to the cause.