PSO IN APP DESIGNER

I am creating a project in App Designer that needs optimization and I got an error saying (Unrecognized field name "Position").

% Update Velocity

particle(i).Velocity(y) = w*particle(i).Velocity(y) ...

+ c1*rand(VarSize).*(particle(i).Best.Position(y) - particle(i).Position(y)) ...

+ c2*rand(VarSize).*(GlobalBest.Position(y) - particle(i).Position(y));

Answer 1

[Kumar Pallav]

Could you share the code to analyze the issue further. The issue is caused if you are accessing a variable or property which is not defined or accesible.