ERROR TypeError: Cannot read properties of undefined (reading 'unsubscribe')

[varund29]

Hi, getting below error when navigation between components

ERROR TypeError: Cannot read properties of undefined (reading 'unsubscribe')

ngOnDestroy() {
this.filteredReturn.emit(this.array);
this.searchFormValueChangesSubscription.unsubscribe();
}

ERROR TypeError: Cannot read properties of undefined (reading 'unsubscribe')
    at MatSelectFilterComponent.ngOnDestroy (mat-select-filter.js:104:1)
    at executeOnDestroys (core.js:9261:1)
    at cleanUpView (core.js:9185:1)
    at destroyViewTree (core.js:9018:1)
    at destroyLView (core.js:9163:1)
    at ViewContainerRef.remove (core.js:10273:1)
    at ViewContainerRef.clear (core.js:10180:1)
    at NgIf._updateView (common.js:3467:1)
    at set ngIf (common.js:3444:1)
    at setInputsForProperty (core.js:8851:1)