Hello everyone,
someone can help me with this very easy code?
I don't understand what I'm doing wrong

model x
  Boolean Extra1;
  Boolean Extra2;
  Boolean ExtraPointsCondition;
  Real extraPointSurface_1;
  Real extraPointSurface_2;
equation

  if noEvent(extraPointSurface_1=8) or noEvent(extraPointSurface_2=8) then

   ExtraPointsCondition=true;
  end if;
end x;

The error message that I get is the follow

Check of x:

Unknown named argument 'extraPointSurface_1' for function noEvent in (model x).

In call noEvent(extraPointSurface_1=8)

The function is declared as:
function noEvent
end noEvent;

Unknown named argument 'extraPointSurface_2' for function noEvent in (model x).

In call noEvent(extraPointSurface_2=8)

The function is declared as:
function noEvent
end noEvent;

Errors found in: if (noEvent() or noEvent()) then
// No equations
end if;

Modelica Text: line 9

The model contained invalid expressions.

Check aborted.

ERROR: 2 errors were found


Thank you very much in advance