Hello all,

I am solving a simple quadratric problem of the form

```
x* = argmin 0.5 x'Qx + x'q
# x
# s.t. l1 ≤ Ax ≤ u1
```

my code is as follows:

```
model = Model(HiGHS.Optimizer)
@variable(model, x[1:n] >= 0)
@objective(model, Min, 0.5*x'*Q*x+x'*q)
@constraint(model, l1<=A*x<=u1)
optimize!(model)
```

but it is giving me the error `nrecognized constraint building format. Tried to invoke `build_constraint(error, AffExpr[], Float64[], Float64[])`, but no such method exists. This is due to specifying an unrecognized function, constraint set, and/or extra positional/keyword arguments.`

Any help will be appreciated. Thank you