ERROR TS1086 An accessor cannot be declared in an ambient context. get firebaseUiConfig(): NativeFirebaseUIAuthConfig

Question

Building SPA using Angular/CLI 8. Running locally until successfully. Adding firebase auth to app. Got following error message when compiling via VSC:

ERROR in node_modules/firebaseui-angular/lib/firebaseui-angular-library.component.d.ts:17:9 - error TS1086: An accessor cannot be declared in an ambient context.

17 get firebaseUiConfig(): NativeFirebaseUIAuthConfig; ~~~~~~~~~~~~~~~~

Ran: npm install firebase firebaseui @angular/fire firebaseui-angular --save

Ran: ng serve to complile and view locally and received error.

Using: 
typescript ~3.5.3
firebase ^7.13.2
firebaseui ^4.5.0
firebaseui-angular ^4.1.0
angular/cli ~8.3.25
angular/compiler-cli ~8.2.14
angular-devkit/build-angular ~0.803.25
Running on MacPro Catalina v-10.15.3

Have looked at other similar posts here on stackoverflow. Did not find any tied to same circumstances. Tried some of the solutions that helped others with similar problems but with other circumstances such as angular-animations and flex-layout. Both cases were lowering versions of each. Also have tried lowering version of firebaseui from 4.5.0 down to 3.6.0 to no avail.

Answer 1

changing

firebaseui-angular: ^4.1.0

to

"firebaseui-angular": "~4.0.1"

in package.json worked for me