V 2.1.0: TypeError: Cannot read property 'kind' of undefined about angularx-qrcode

[Cordobo]

Ok, what I've read so far, it could be an issue with an older @angular dependency (1) used in your package.json. I run ng build --prod with the following devDependencies and can't reproduce the error. Coiuld you try updating your dependencies to the ones below?

"devDependencies": {
    "@angular-devkit/build-angular": "~0.803.21",
    "@angular-devkit/build-ng-packagr": "~0.803.21",
    "@angular/cli": "~8.3.21",
    "@angular/compiler-cli": "~8.2.14",
    "@angular/language-service": "~8.2.14",
...
}

1. Reference: angular/angular-cli#15705

[lance-h]

@nicosoutn2014 I am using @angular/cli ^7.2.2 - I downgraded angularx-qrcode to ^1.6.4 which removed the issue for me. Be aware that the documentation is slightly different between versions.

[maelle9931]

The fix proposed on this thread only works for Angular 8+. This component is supposed to be compatible with Angular 7. Please provide a fix for Angular 7.

[andreElrico]

I called

• npm update (update to latest minor)
• npm install @angular-devkit/[email protected]
• ng build --prod (works now)

Thanks to all other suggestions. Very helpful :-)

[PTC-JoshuaMatthews]

@andreElrico my issue was with a different library but it was throwing the same error, and the steps above got it working. Thanks!

[Cordobo]

@egodefroy Thanks for your bug report, could you please provide a working repo with which I can reproduce the issue?

compare #67

[albalooshi]

Hi, having the same issue with an ionic app, when running --prod.

[egodefroy]

@Cordobo
see my repo : https://github.com/egodefroy/tstqr

[albalooshi]

solved the issue by downgrading to 1.6.4

[Cordobo]

@Cordobo
see my repo : https://github.com/egodefroy/tstqr

I can't access the repo, I got a 404

[egodefroy]

@Cordobo
Thanks, this seems the right analysis. Using these dependencies, the error does not show!

[Cordobo]

Ok, closing. Feel free to highlight my comment for other users with a smilie.

[nicosoutn2014]

@Cordobo Hi! What about @angular/cli ~7.3.5? Any fixes?

[Dianaman]

Got the same error and fixed it by downgrading the version, as stated above.
Please, try making the latest version compatible with the newest versions of angular in order to not lose functionalities.

[Shaker1978]

The fix proposed on this thread only works for Angular 8+. This component is supposed to be compatible with Angular 7. Please provide a fix for Angular 7.

I agree. Version 2.x is declared to work with Angular 6/7/8/9 which is incorrect, because you have to use @angular-devkit/build-angular 0.8xx in order to build prod without errors. This again requires Angular 8. This finally leaves version 2.x unusable with Angular 6+7 in a prod environment.

[bacmanni]

The fix proposed on this thread only works for Angular 8+. This component is supposed to be compatible with Angular 7. Please provide a fix for Angular 7.

I agree. Version 2.x is declared to work with Angular 6/7/8/9 which is incorrect, because you have to use @angular-devkit/build-angular 0.8xx in order to build prod without errors. This again requires Angular 8. This finally leaves version 2.x unusable with Angular 6+7 in a prod environment.

You are right. Just got my code working and found this thread after wondering why my production build is broken. Page still says that 2.x is compatible with Angular 7.x but this is incorrect. @Cordobo please give us working fix or correct the documentation.

[Cordobo]

Hi @ALL

I updated the readme to reflect the issue.