Answer 1

Yes. Remove those from code...
edit:
belal bayrakdar
space before every statement is invalid one

Answer 2

Yes, I know.
But what I mean is currently those are not spaces, it's invalid characters. Remove those and replace a space of yours..

Answer 3

belal bayrakdar
May you copied it from a net sourse Or unknown, incompatible sources.. ?

Answer 4

Where ever it showing, remove spaces by "press back space", you can add again space. Just like rewrite code..

Answer 5

Yes. That's the reason.