Remove dual solution warning from optimize!

src/MOI_wrapper.jl

@@ -1091,6 +1091,18 @@ function MOI.get(
     return MOI.get(model.optimizer, attr, optimizer_ci)
 end
 
+function MOI.get(
+    model::Optimizer,
+    attr::MOI.ConstraintDual,
+    c::MOI.ConstraintIndex{MOI.VariableIndex,MOI.Parameter{T}},
+) where {T}
+    if !model.evaluate_duals
+        error()
+    end
+    optimizer_ci = get(model.constraint_outer_to_inner, c, c)
+    return MOI.get(model.optimizer, attr, optimizer_ci)
+end
+
 #
 # Special Attributes
 #
@@ -1355,10 +1367,7 @@ function MOI.optimize!(model::Optimizer)
         _set_quadratic_product_in_obj!(model)
     end
     MOI.optimize!(model.optimizer)
-    if MOI.get(model, MOI.DualStatus()) == MOI.NO_SOLUTION &&
-       model.evaluate_duals
-        @warn "Dual solution not available, ignoring `evaluate_duals`"
-    elseif model.evaluate_duals
+    if model.evaluate_duals
         _compute_dual_of_parameters!(model)
     end
     return