Error in Angular JS applciation, Need your help guys ??

Question

I reffered to one of the article give below,

 

 

http://www.c-sharpcorner.com/article/asp-net-core1-0-insert-select-to-database-using-angular2-and-web-api/

 

 

But dono what went wrong, am facing few issues at the end of article as shown below