get error when use latest igniteUI for angular 6

HI , 

I can use ignite for angular 6.2.12 for my angular project , ( angular : 6.1.1 , typescript 2.7.3 ) but when try to use with igniteUI for angular latest version 7.2.4 , Got error : 

ERROR in [at-loader] ./node_modules/igniteui-angular/lib/directives/toggle/toggle.directive.d.ts:139:39
TS1005: ';' expected.

ERROR in [at-loader] ./node_modules/igniteui-angular/lib/grids/api.service.d.ts:47:10
TS2304: Cannot find name 'x'.

.v.v. 

please help 

Hello,

I guess you upgraded IgniteUI for Angular from 6.2.12 to 7.2.4 but that didn't upgrade Angular, is this correct?

If it is the case, you also need to upgrade Angular to 7.*.

The first number of our IgniteUI for Angular's version indicates the major version of Angular it supports. Therefore, if you upgraded IgniteUI for Angular to 7.*, you need to upgrade Angular to 7.*, too.

Here are the information about Ignite UI for Angular's versioning:
https://github.com/IgniteUI/igniteui-angular/wiki/Ignite-UI-for-Angular-versioning

I hope this will help.