node_modules/@videogular/ngx-videogular/buffering/lib/buffering.module.d.ts:6:21 - error TS2694: Namespace

[ramzan34]

Description

After installing with command:
npm install @videogular/ngx-videogular --save
npm install @types/core-js --save-dev
when added into app.module.ts it is giving long list of error
ERROR in node_modules/@videogular/ngx-videogular/core/lib/directives/vg-cue-points/vg-cue-points.directive.d.ts:24:21 - error TS2694: Namespace...

static ɵdir: i0.ɵɵDirectiveDeclaration<VgCuePointsDirective, "[vgCuePoints]", never, {}, { "onEnterCuePoint": "onEnterCuePoint"; "onUpdateCuePoint": "onUpdateCuePoint"; "onExitCuePoint": "onExitCuePoint"; "onCompleteCuePoint": "onCompleteCuePoint"; }, never, never, false>;...

node_modules/@videogular/ngx-videogular/buffering/lib/buffering.module.d.ts:6:21 - error TS2694: Namespace...

Expected Behavior

Please help, i did try on newly crated project it is working fine but with existing project it is showing error
I am using Angular CLI: 10.0.8
Node: 16.17.0
Angular: 10.0.14