Code generation with user's function

I have a simulink model with a "MATLAB Function" block which calls m-function. If this m-function has one input and one output variables, this model is built to MS Visual Studio solution well. But if this m-function will have arrays in input and output, model building is interrupted with error: "Undefined function or variable 'out'. The first assignment to a local variable determines its class".

Is it possible to create a MSVS solution from a simulink model with user's functions with array argument?