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Upgrade to 9 breaks ng-universal application. #16087

@shane-arthur

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@shane-arthur

Angular 9 Upgrade Issues

Our team recently tried to upgrade to Angular 9 RC following the migration guide https://update.angular.io/ upgrading from 8.0x to 9.

When trying to run our universal build we are met with the following errors.

TypeError: Cannot Assign to read only property '_showWarnings' of object '#'

Screen Shot 2019-11-04 at 4 02 02 PM
Screen Shot 2019-11-04 at 3 58 24 PM

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