E2173 Missing or invalid conditional symbol in '$%s' directive (Object Pascal)
The $IFDEF, $IFNDEF, $DEFINE and $UNDEF directives require that a symbol follow them.
program Produce; (*$IFDEF*) (*$ENDIF*) begin end.
The $IFDEF conditional directive is incorrectly specified here and will result in an error.
program Solve; (*$IFDEF WIN32*) (*$ENDIF*) begin end.
The solution to the problem is to ensure that a symbol to test follows the appropriate directives.