Getting error An expression of type 'void' cannot be tested for truthiness angular 7

Question

ERROR in node_modules\@ng-bootstrap
g-bootstrap\datepicker\datepicker-navigation.d.ts.NgbDatepickerNavigation.html(3,67): : An expression of type 'void' cannot be tested for truthiness
node_modules\@ng-bootstrap
g-bootstrap\datepicker\datepicker-navigation.d.ts.NgbDatepickerNavigation.html(25,67): : An expression of type 'void' cannot be tested for truthiness

when i am using ng build --prod i am getting this error

user_9928564 · Answer

look at this issue: https://github.com/ng-bootstrap/ng-bootstrap/issues/2755 , you need to update ur ng-bootstrap to actual version or fix it with the answer, decribed on

user_6617342 · Answer

upgrade to ngb-3.1.1. This issue has been taken care. https://github.com/ng-bootstrap/ng-bootstrap/issues/2826

Getting error An expression of type 'void' cannot be tested for truthiness angular 7

2 Answers