求高手！LINGO error code 191——2026

小弟初次用Lingo，出现如下情况，求高手帮助！
我用的是Lingo11破解版的，各种变量没有限制的。

model:
sets:
warehouses/wh1..wh53/: ni;
vendors/1..50/;
l/1..53/:ll;
rows/1..53/;
cols/1..50/;
table(rows,cols): volume;
table1(rows,cols): cost;
xxa/1..50/:xx;
endsets
!目标函数;
min=@sum(vendors(J): xx(J)*(3005-@sum(warehouses(I): volume(I,J)*(cost(I,J)+5))));
!最小值约束;
@for(vendors(J):xx(J)>=0);
!数量约束;
@for(warehouses(I):@sum(vendors(J): volume(I,J)*xx(J))=ni(I));
!时间约束;
@sum(vendors(J): xx(J)*@if(volume(5,J) #gt# 0,1,0))<=400;
@sum(vendors(J): xx(J)*@if(volume(7,J) #gt# 0,1,0))<=400;
@sum(vendors(J): xx(J)*@if(volume(9,J) #gt# 0,1,0))<=400;
data:
ll=;
ni=;
cost=;
enddata
end

给具体的程序看看

sets: plan/1..5/:x,t1,t2,invest,fee,sfee,eff1,eff2,waste,wl; endsets data: invest=0 20 0 10 50; fee=5 7 8 8 12; sfee=3 5 8 10 14; eff1=1000 1500 1200 1600 1600; eff2=800 1400 1000 1300 1200; waste=2 2 3 3 3; wl=30 30 50 50 50; enddata @for(plan:@bin(x)); min=@sum(plan(i):x(i)*(invest(i)+t1(i)*fee(i)+sfee(i)+t1(i)*eff1(i)*waste(i)*wl(i)+t2(i)*eff2(i)*waste(i)*wl(i)+0.05*invest(i))); x(3)+x(4)&lt;=1; 0.98*x(1)*t1(1)*eff1(1)+0.98*x(2)*t1(2)*eff1(2)=3000; 0.98*x(1)*t2(1)*eff2(1)+0.98*x(2)*t2(2)*eff2(2)=2000; 0.97*x(3)*t1(3)*eff1(3)+0.97*x(4)*t1(4)*eff1(4)+0.97*x(5)*t1(5)*eff1(5)=10000; 0.97*x(3)*t2(3)*eff2(3)+0.97*x(4)*t2(4)*eff2(4)+0.97*x(5)*t2(5)*eff2(5)=8000; @for(plan(i):t1(i)+t2(i)&lt;=8000); 问题不少 细微错误很多