how can i solve this problem! About PC SDK!!!

private void button6_Click(object sender, EventArgs e)
{
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.Filter = “Mod Files (.mod)|.mod|All Files (.)|.*”;
openFileDialog1.FilterIndex = 1;

openFileDialog1.Multiselect = true;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
FileSystem aFileSystem = controller.FileSystem;
string remoteDir = controller.FileSystem.RemoteDirectory;
controller.FileSystem.PutFile("d:\downmod", remoteDir);
try
{
// tasks.LoadProgramFromFile(aPrgFileName, RapidLoadMode.Replace);
tasks.LoadModuleFromFile(“move.mod”, RapidLoadMode.Add);
}
catch (ArgumentException ex)
{
return;
}

?“T?__ 18 ?oSystem.Array?__?1??,?O.?_??_oLoadModuleFromFile?__?s,?rs?1% F:ABB??-?”

error18: sSystem.Array"don`t included the defining of?_oLoadModuleFromFile