Cannot "import as" with prod build

[rhino5oh]

• build

Regression?

I believe so, however, I do not recall the exact last version that it worked

Description

In all of my routing modules, I have the following import:
import { AuthGuardService as AuthGuard } from './../auth/auth-guard.service'

And I use it like so:

const scatRoutes: Routes = [
  { path: 'scat', component: ScatComponent, canActivate: [AuthGuard]  }
];

When I do a prod build, such as:
ng build --prod --source-map

I get the following error when I attempt to access my application (served via Express.js):

ReferenceError: AuthGuard is not defined

Note: I do not have this problem with a regular, non-prod build, e.g. 'ng build'

Also, removing the "as" part of the import, and simply importing the class name itself, does in fact work. So it appears to be in issue with doing import "as". In other words, it works if I change the import to this:

import { AuthGuardService } from './../auth/auth-guard.service'

Here's my environment:

Angular CLI: 7.3.0
Node: 8.11.3
OS: win32 x64
Angular: 7.2.3
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.10.2
@angular-devkit/build-angular     0.10.2
@angular-devkit/build-optimizer   0.10.2
@angular-devkit/build-webpack     0.10.2
@angular-devkit/core              7.0.2
@angular-devkit/schematics        7.3.0
@angular/cdk                      7.3.0
@angular/cli                      7.3.0
@angular/material                 7.3.0
@ngtools/webpack                  7.0.2
@schematics/angular               7.3.0
@schematics/update                0.13.0
rxjs                              6.4.0
typescript                        3.2.4
webpack                           4.19.1

[alan-agius4]

Hi, kindly update @angular-devkit/build-angular to the lastest version.

Duplicate of
#13212

[rhino5oh]

why doesn't ng update show me that I need to update any @angular-devkit/* packages?

I submitted an issue for this: #13581

[rhino5oh]

Also, I updated @angular-devkit/build-angular, now I'm getting this build error:

ERROR in scripts.b0500e1e41820f3b46e0.js from Terser
TypeError: Cannot read property 'minify' of undefined
at minify (C:\<removed>\node_modules\terser-webpack-plugin\dist\minify.js:175:23)
    at module.exports (C:\<removed>\node_modules\terser-webpack-plugin\dist\worker.js:13:40)
    at handle (C:\<removed>\node_modules\worker-farm\lib\child\index.js:44:8)
    at process.<anonymous> (C:\<removed>\node_modules\worker-farm\lib\child\index.js:51:3)
    at emitTwo (events.js:126:13)
    at process.emit (events.js:214:7)
    at emit (internal/child_process.js:772:12)
    at _combinedTickCallback (internal/process/next_tick.js:141:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)

Edit: just saw someone submitted a bug for this. #13582

[silver-software]

I have this error also. How can I fix this issue?

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