E2004 Identifier redeclared '%s' (Delphi)

Go Up to Error and Warning Messages (Delphi)

The given identifier has already been declared in this scope - you are trying to reuse its name for something else.

program Tests;
var
  Tests: Integer;
begin
end.

Here the name of the program is the same as that of the variable - we need to change one of them to make the compiler happy.

program Tests;
var
  TestCnt: Integer;
begin
end.