I’m solving an svm problem with ampl (both primal and dual form).The model should be correct and indeed

it compiles without errors but I get the following error message:

CreateProcess(“.snopt.exe”) failure!

Error code 2.

these are my models:

primal form

```
param n;
param x{i in{1..n}, j in{1..2} };
param y{i in{1..n}};
var w{i in{1..2}};
var b;
# objective function
minimize obj: 1/2 * sum{i in{1..2}}( w[i]^2 );
subject to c1 {i in {1..n}}: y[i] * ( sum{j in {1..2}} ( w[j] * x[i,j] ) + b ) >= 1;
```

dual form:

```
reset;
param l;
param C := 10;
var lambda{1..l}>=0, <= C;
param x{i in{1..l}, j in{1..2} };
param y{i in{1..l}};
minimize obj : 1/2*sum{i in 1..l}lambda[i]*y[i]*sum{k in 1..2}x[i,k]*
sum{j in 1..l}lambda[j]*y[j]*x[j,k];
s.t. vincolo1: sum{i in 1..l}lambda[i]*y[i]=0;
```

and model.dat

```
param n:=10;
#param l:=10;
param x : 1 2 :=
1 -1 7
2 -2 5
3 2 5
4 -2 1
5 0 -1
6 -4 3
7 0 3
8 3 0
9 4 3
10 2 8;
param y :=
1 1
2 1
3 1
4 1
5 1
6 -1
7 -1
8 -1
9 -1
10 -1;
```