"Can't reference 'this' before calling super in derived class constructors"

“Can’t reference ‘this’ before calling super in derived class constructors”.
Hy guys, i have this issue, when i try to execute my aplication, someone knows how i fix this?

simply put the statement which uses ‘this’ after the super() call as the error message says

No, i don’t use this in my application.
this issue is with another file. i think this issue is with Job-Collection, but i don’t know fix this.

Can you share the code of your project? Without that it is difficult to help further.