Matlab production server, c# client (500) Interner server failed

i have an issue with the matlab production server, that i didnt understand.

after i create the C# client and i run it perfectly in the first time, i try the 2ed time and it gives me this issue all the time.

"System.Net.WebException The remote server returned an error: (500) Internal server error."

there for i stop it and run it again to work.

can anyone help me to fix this issue?

this is my C# Code:

public interface VWZ { object[] fct_rf_classify(string in1,string in2, double in4, double in5, string in6); } static void Main(string[] args) { MWClient client = new MWHttpClient();

        try
        {
            VWZ me = client.CreateProxy<VWZ>(new Uri("http://localhost:9910/fct_rf_classify"));
            object[] result = me.fct_rf_classify("time", "T3_avg", 20, 20, "C1_C942VSR122MP01_sync_red.mat");

            var arr1 = (double[,])result[0];
            var arr2 = (double[])result[1];
            var arr3 = (double[])result[2];
            var arr4 = (byte[,,])result[3];

        }

        finally
        {
            if (client != null)
            {
                client.Dispose();
            }
        }
    }

[Kojiro Saito]

Could you provide the log information of MPS instance? It's located in log\main.log under the instance folder.

[salah hamed]

thank you for your replay but i resolved the Problem just now, all i need to do is starting the command prompt (to start the MPS) with the Administrator privilege.

[Kojiro Saito]

Sounds good.

Just for information, if you're using R2017a or later, MPS dashboard is available and it let you easily start and stop the instance just clicking a button. Ref: this document.

[salah hamed]

Thank you so much Kojiro for the Tip, i will try to install it soon.