error in return of double variable, returning -nan (ind)

[Igor Vilela]

Hello, after updating Metratrader for build 1940, one of my thefts that uses the following includes;

#include <MT4Orders.mqh>

#include <Math \ Fuzzy \ MamdaniFuzzySystem.mqh>

#include <Math \ Stat \ Uniform.mqh>

#include <Math \ Alglib \ dataanalysis.mqh>

started to return a strange double calculation value "-nan (Ind)", would anyone know what is wrong?

[Guo Zheng Feng]

show your code .

better that you could show the errors without give you code.