Compile error

[vtrx-az]

I tried to compile and there are many errors.
First snippet with errors in the variables:

function gererCollisions(position : TPoint; joueur : TImage; unRectangle : TRectangle; detruireObjetTouche: boolean):TCollision;
begin
var enCollision := false;
for var recChild in unRectangle.Children do begin
var unEnfant : TImage := recChild as TImage;
if (position.X > unEnfant.Position.X) and (position.X < unEnfant.Position.X + unEnfant.Width) and
(position.y + joueur.Height > unEnfant.Position.Y) and (position.y < unEnfant.Position.Y + unEnfant.Height) then begin
enCollision := true;
result.objet := unEnfant;
if detruireObjetTouche then unEnfant.free;
break;
end;
end;
result.enCollision := enCollision;
end;

[gbegreg]

Can you give more details on errors ?
This project need at least Delphi 10.3 (I use inline variable and type inference).

If you used an older version of Delphi, you need to modify the code to change all variables declarations...