poiseuille MRT build error

I want to study the MRT in palabos. For the example ‘‘poiseuille’’, the follow error occurs when building.

E:\study and research\palabos\palabos-original\comparison\bingham\my code\mrt_poi\poiseuille.cpp||In function ‘int main(int, char**)’:expressionless:
E:\study and research\palabos\palabos-original\comparison\bingham\my code\mrt_poi\poiseuille.cpp|258|error: ‘mrtId’ was not declared in this scope|
E:\study and research\palabos\palabos-original\comparison\bingham\my code\mrt_poi\poiseuille.cpp|256|warning: unused variable ‘omega’|
||=== Build finished: 1 errors, 1 warnings ===|

I tried to declare the “mrtId” in different types. But it doesn’t work.
Any help is appreciative!

thanks