Develop Reference

Why is it actually impossible to load onnxruntime.dll?

Using the tutorial from the developers at Microsoft, I followed the tutorial created at https://learn.microsoft.com/en-us/dotnet/machine-learning/tutorials/object-detection-onnx.
I made sure to install CUDA V10.1.243 and cuDNN 7.6.5 from Nvidia's site.
Yet somehow, even after copying the entire contents of C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.1\bin to my project binary's directory at machinelearning-samples\samples\csharp\end-to-end-apps\ObjectDetection-Onnx\OnnxObjectDetectionApp\bin\Debug\netcoreapp3.0, I keep running into the following error while compiling the example program MS provided: Exception thrown: 'System.DllNotFoundException' in System.Private.CoreLib.dll An exception of type 'System.DllNotFoundException' occurred in System.Private.CoreLib.dll but was not handled in user code Unable to load DLL 'onnxruntime' or one of its dependencies: The specified module could not be found. (0x8007007E).
This should make sure they are accessible from the PATH right? I'm also including their original location in NVIDIA GPU Toolkit in the system PATH as well. I am using the latest version of Visual Studio 2019 to load and compile this solution. Is there anyone out there that has been able to run this code successfully, and if so, how?

Exception on renaming GitHub speech to text recognition using Google API project

I am a novice to C# i'm not sure if I'm writing on the right forum for this question . I just downloaded speech recognition using Google Api winForms project from GitHub. Initially its was this exception
NuGet Package restore failed for project WinRecognize: The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters..
So, I renamed the project folder, exception disappeared, but now I am getting following exceptions while in debugging mode after pressing "voice detect" button in output
Exception thrown: 'System.InvalidOperationException' in Google.Api.Gax.dll Exception thrown: 'System.InvalidOperationException' in Google.Api.Gax.dll Exception thrown: 'System.InvalidOperationException' in Google.Api.Gax.dll Exception thrown: 'System.InvalidOperationException' in Google.Api.Gax.dll

UWP Xamarin.Forms 'System.IO.FileNotFoundException' occurred in System.Private.Reflection.Core.dll

My UWP app crashes on Xamarin.Forms.Forms.Init(e, assemblies) with
**Exception thrown:
'System.IO.FileNotFoundException' in
System.Private.Reflection.Core.dllFileNotFound_AssemblyNotFound,
clrcompression**
The app don't crash if I uncheck 'System.IO.FileNotFoundException' from Exception settings, but it's not the best solution because if I uncheck this exception I have another problem with Storage API(I can't use the StorageFolder to get files because the execution doesn't return and no exception is thrown).
I don't know if this problem can be releated with the first exception, but
can anyone fix this problem?

The problem was async/await method when I use Storage API, and for System.IO.FileNotFoundException I had to update Visual Studio.

UnityContainer.Resolve crashes when .NET Native tool chain is enabled

We have a Windows 10 UWP app that runs fine under Debug builds and crashes under Release builds. What it is about release builds that makes it crash is that .NET Native tools chain is enabled - disabling that allows the app to run. But that's not a real fix as it needs to run with .NET Native tool chain if you intend to publish to the store.
We use Microsoft.Practices.Unity for DI. Here's an example of how we register some classes:
container.RegisterType<IBoardView, BoardView>();
And then, in our app we resolve it as follows:
container.Resolve<IBoardView>();
It works fine unless I run it with .NET Native, in which case I get the following exception:
An exception of type 'Microsoft.Practices.Unity.ResolutionFailedException' occurred in Microsoft.Practices.Unity.dll but was not handled in user code
Additional information: Resolution of the dependency failed, type = "WindowsUniversal.ViewModels.Interfaces.IBoardViewModel", name = "(none)".
Exception occurred while: while resolving.
And in the output window I get:
Exception thrown: 'System.NullReferenceException' in System.Linq.Expressions.dll
Exception thrown: 'System.NullReferenceException' in Microsoft.Practices.Unity.dll
Exception thrown: 'Microsoft.Practices.Unity.ResolutionFailedException' in Microsoft.Practices.Unity.dll
An exception of type 'Microsoft.Practices.Unity.ResolutionFailedException' occurred in Microsoft.Practices.Unity.dll but was not handled in user code
Additional information: Resolution of the dependency failed, type = "WindowsUniversal.ViewModels.Interfaces.IBoardViewModel", name = "(none)".
Exception occurred while: while resolving.
Exception is: NullReferenceException - Object reference not set to an instance of an object.
At the time of the exception, the container was:
Resolving WindowsUniversal.ViewModels.Interfaces.IBoardViewModel,(none)
All this works under Debug or Release when .NET Native is disabled. Now I know .NET Native has it's limitations, reflection being one of them. I guess I'm asking how to get around this?
Any insights would be greatly appreciated, thanks.

Matlab builder NE 2012A x64 migreting to 2014B X64

I'm trying to convert my system from matlab 2012a x64 to matlab 2014b x64. However I'm getting this error. i'm using .Net 4.5, visual studio 2012 + update 5.
A first chance exception of type 'System.Exception' occurred in MWArray.dll
Additional information: Start-up options discovered in multiple assembiles.
then I hit F5 and I get:
A first chance exception of type 'System.TypeInitializationException' occurred in MWArray.dll
Additional information: The type initializer for 'MathWorks.MATLAB.NET.Utility.MWMCR' threw an exception.
I press F5 again and I get:
A first chance exception of type 'System.TypeInitializationException' occurred in MWArray.dll
Additional information: The type initializer for 'MathWorks.MATLAB.NET.Arrays.MWArray' threw an exception.
here is my code:
private static MWArray ConvertBlackLevelResultsToMWArray(BlackLevelData blackLevelData)
{
var blackLevelResultsGroupedbyExposure = from blResult in blackLevelData group blResult by blResult.ExposureTime;
var exposuresCount = blackLevelResultsGroupedbyExposure.Count();
var blackLevelCells = new MWCellArray(1, exposuresCount); //the exception is here
I have used .net reflector in order to go over all of the dependencies in other DLL files, they all have refernce to the correct MWarray version 2.14.1.0
Can you suggest A way to find out what is my problem?
thanks

You must remove all the attributes
[assembly: MathWorks.MATLAB.NET.Utility.MWMCROption ("- nojit")]
from all places, to which were added for MCR 2012a.