Using npm install @angular/cdk --save would resolve this.
It needs it because the p-table uses the p-paginator which uses p-dropdown, which this needs the cdk.
You can check it here:
- Table:
https://github.com/primefaces/primeng/blob/7.1.0/src/app/components/table/table.ts - Paginator:
https://github.com/primefaces/primeng/blob/7.1.0/src/app/components/paginator/paginator.ts - Dropdown: https://github.com/primefaces/primeng/blob/7.1.0/src/app/components/dropdown/dropdown.ts