VB.NET & Matlab .dll

Hello,

I'm writting here because I have a proble that I cannot solve by myself...

I developped matlab functions that I wanted to transfer to VB.Net through a .dll. I successfully compiled the .dll with Matlab compiler and imported it to VB.NET.

But now I'm trying to use it and i definitly don't understand why it doesn't wor. That is what I writted on VB.net

Imports StatFeaturesExtractor

sub*****
        Dim Extractor As StatFeaturesExtractor.Extractor
        Dim MatlabTypePath As MathWorks.MATLAB.NET.Arrays.MWArray
        MatlabTypePath = New MathWorks.MATLAB.NET.Arrays.MWCharArray(path)  '==> this line already bug...

          Dim Result As MathWorks.MATLAB.NET.Arrays.MWArray
          Result = Extractor.StatFeatureExtractor(MatlabTypePath)
  end sub

for your comprehention, StatFeatureExtractor is a simlpe to use (theorically) as the only argument is a string (a path) and the result consist of a 8x1 array of double

thank for your help

[Friedrich]

What is your variable path? What does it contain? Which data type does it have? What error do you get? What do you mean with "this line already bug"?

[Christophe]

Path is a string it contains a path to my hard drive the error I have is " Une exception a été levée par l'initialiseur de type pour 'MathWorks.MATLAB.NET.Arrays.MWArray'. "