ERROR in node_modules/@ng-bootstrap/ng-bootstrap/accordion/accordion-config.d.ts(14,9): error TS1086: An accessor cannot be declared in an ambient context. code example

Example 1: ERROR in node_modules/@ng-bootstrap/ng-bootstrap/accordion/accordion.d.ts:230:9 - error TS1086: An accessor cannot be declared in an ambient context. 230 set ngbPanelToggle(panel: NgbPanel);

ng update @angular/core @angular/cli

Example 2: ERROR in node_modules/@ng-bootstrap/ng-bootstrap/accordion/accordion.d.ts:230:9 - error TS1086: An accessor cannot be declared in an ambient context. 230 set ngbPanelToggle(panel: NgbPanel);

ng update @angular/material