ERROR in node_modules/ionic2-calendar/calendar.d.ts(152,9): error TS1086: An accessor cannot be declared in an ambient context. code example

Example 1: angular An accessor cannot be declared in an ambient context.

ng update --next @angular/cli --force
npm install typescript@latest

Example 2: An accessor cannot be declared in an ambient context.

npm install ngx-swiper-wrapper --save
(Contreberg)