Uncaught ReferenceError: __importDefault is not defined

[akolybelnikov]

🐞 bug report

Affected Package

The issue is caused by package @angular/...."9.0.0-next.2"

Is this a regression?

Yes, the previous version in which this bug was not present was: @angular/...."8.0.0"

Description

App compiles with ng serve but is not being loaded in the browser with the above error referring to a line in the components metadata:
templateUrl: './login.component.html',

🔬 Minimal Reproduction

https://github.com/akolybelnikov/repro-issue-ng-9

🔥 Exception or Error

(In Chrome: )Uncaught ReferenceError: __importDefault is not defined

(In Safari: ) ReferenceError: Can't find variable: __importDefault

🌍 Your Environment

Angular Version: 9.0.0-next.2

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.803.0-rc.0
@angular-devkit/build-angular      0.803.0-rc.0
@angular-devkit/build-ng-packagr   0.803.0-rc.0
@angular-devkit/build-optimizer    0.803.0-rc.0
@angular-devkit/build-webpack      0.803.0-rc.0
@angular-devkit/core               8.3.0-rc.0
@angular-devkit/schematics         8.1.1
@angular/cdk                       8.1.3
@angular/cli                       8.3.0-rc.0
@angular/material                  8.1.3
@angular/pwa                       0.803.0-rc.0
@ngtools/webpack                   8.3.0-rc.0
@schematics/angular                8.3.0-rc.0
@schematics/update                 0.803.0-rc.0
ng-packagr                         5.5.0
rxjs                               6.5.2
typescript                         3.7.0-dev.20190820
webpack                            4.39.2

Anything else relevant?
MacOS

[supzfly]

Just been updating my cli and am now getting the same error.

Previously worked with v7

[hbod8]

I'm having the same problem after updating the CLI.

[xriu]

For me, the fix was just downgrade typescript package (3.4.5 works fine)

[kschwidder]

Happens also with the latest 8.x release !
Downgraded TypeScript to 3.5.3 which fixes it. TypeScript 3.6.x is buggy !

[furmanvit]

Happens also with the latest 8.x release !
Downgraded TypeScript to 3.5.3 which fixes it. TypeScript 3.6 is buggy !

I cant downgrade tsc version, because in ng --version its always shows me 3.6.4. I can only change tsc globally and in local project, but in package Angular CLI (ng --version) it still shows me the newest version of typescript. Do you know, how to downgrade tsc dicectly in Angular CLI package?

[kschwidder]

I just updated package.json such that typescript points to 3.5.3 and did an npm install. That's it.

[pcz4489]

Because my TypeScript version cannot be downgraded, I have overridden this method.
by use in my html script tag:
var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }
and it works, Reference link. See what's '--esModuleInterop' do.

[Undrium]

Time to get this one up a tad bit; Angular 9.0.0-next.14 actually requires typescript between 3.6.4 and 3.7.0, causing a huge problem with the template imports as this is caused by TS 3.6.4 or higher. zengpl's solution, one message up, works but is really ugly.

[akolybelnikov]

I have just updated the project to v9.0.0-next.14 / TS v.3.6.4 with ng update and after the CLI linted all files, the issue is not present anymore.

[dvsingh9]

ng v9.0.0-rc.0 and ts v3.6.4 not working for me.

[akolybelnikov]

Closing my issue as it is resolved in the latest version.

[dvsingh9]

Closing my issue as it is resolved in the latest version.

issue still persist with .rc version.

Angular CLI: 9.0.0-rc.1
Node: 12.8.0
OS: darwin x64
Angular:
...

Package Version

@angular-devkit/architect 0.900.0-rc.1
@angular-devkit/core 9.0.0-rc.1
@angular-devkit/schematics 9.0.0-rc.1
@schematics/angular 9.0.0-rc.1
@schematics/update 0.900.0-rc.1
rxjs 6.5.3

and I am using ts v3.6.4

[ngfelixl]

I had exactly the same issue with the following versions:

"@angular/core": "~9.0.0-rc.3",
"@angular-devkit/build-angular": "~0.900.0-rc.3",
"@angular/compiler-cli": "~9.0.0-rc.3",
"@angular/language-service": "~9.0.0-rc.3",
"typescript": "^3.6.4"

What fixed it for me was the update to the same angular/cli version

"@angular/cli": "~9.0.0-rc.3"

[sysmat]

I try typescript 3.6, 3.7 and still not working. I don't think typescript is buggish, but ivy how orginize imports

[eiswind]

I get the same error with rc6, typescript 3.6.4

[duoduoObama]

I get the same error with 9.0.0-rc.7,typescript 3.6.4...

[eiswind]

Updating to

"@angular-devkit/build-angular": "~0.900.0-rc.7"

solved it at my side.

[moez-sadok]

After the checking of the official AIO package.json, the Angular team stay using ^9.0.0-rc.3 and the "@angular-devkit/build-angular": "~0.900.0-rc.3"

Until today is work as a charm

https://github.com/angular/angular/blob/master/aio/package.json

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}