I am trying to include GPU using OpenCvSharp. I installed the OpenCvSharp by using Nuget Package Manager in Microsoft Visual Studio 2013.
I have included these lines already
using OpenCvSharp;
using OpenCvSharp.CPlusPlus;
using OpenCvSharp.CPlusPlus.Gpu;
but when i check the device count
//GPU
int count = Cv2Gpu.GetCudaEnabledDeviceCount();
//int count = Cv2Gpu.ge
Console.WriteLine("The GPU Device count is " + count.ToString());
it always returns 0.
Now it also says if OpenCv is not compiled with CUDA then it always returns 0.
it does not even get DeviceDetails.
I have resolved this problem by building the opencv_core.dll and opencv_gpu.dll.
Make the source code of opencv with Cmake and dont forget to select "withcuda" option while configuring the source code first.
after generation then open OpenCv solution in build folder and first build opencv_core and then opencv_gpu.
once you got the dll in the bin folder replace them in the opencvsharp package folder. Now build the project again. Now the project will copy the new dll's to the required folder.
Related
I want to test the Unity ML example "3D Ball". So, I set up environment:
Imported the ML Agents Package by Unity Package Manager.
Copied the ML Agent example Assets from Unity's official GitHub to My Project File.
Then, I opened the example scene and played that scene. But every code which contains "using Unity.MLAgents.Actuators" fails with the following error:
Assets\test.cs(5,22): error CS0234: The type or namespace name 'Actuators' does not exist in the namespace 'Unity.MLAgents' (are you missing an assembly reference?)
So, I've tried to find MLAgents.Actuator module's source code. But I didn't find anything yet.
Someone said Actuator Module is applied after ML Agent 1.0.3, but I imported the lasted version (v. 1.0.4).
How can I import the ML Agents package properly? Every YouTube tutorial does not show the problem I've encountered.
Here is my environment:
Unity version: Unity 2020.1.0f
ML Agents version: version 1.0.4
ML Agents example: version Release 7
Update the package to a 1.4.0-preview or later (depending on your Unity version, you may need to change some package manager settings to be able to see preview packages).
Get the examples from a tag that corresponds to the 1.0.x package, for example com.unity.ml-agents_1.0.6
You have to manually install it from the repository you cloned.
I added the project from "Unity Hub" rather than inserting asset folder to a new project.
And then everything works fine. Even the preview packages like
[com.unity.ml-agents.extensions": "file:../../com.unity.ml-agents.extensions]
added automatically to the project from my project directory!
If you need to use the 1.0.x pacakage, make sure you're getting the examples from a compatible version (not the master branch). For example, here's the 1.0.2 tag: github.com/Unity-Technologies/ml-agents/tree/…. Looks like 1.03 and 1.0.4 tags are missing but I'll update them tomorrow. – celion Sep 27 '20 at 20:27
Celion had the right answer
I have the same problem, I am very new to Unity. I figured out it is something with the versioning. You need to use the proper version of the package. By installing from the Unity Registry, I was not able to install the last version.
I just install the package from the Disk. Here follow the Install the com.unity.ml-agents Unity package. It fixed my problem.
Unity.MLAgents.Actuators this package is in preview till this date, if you want to use this package you need to update your MLAgents package from package manager.
I am attempting to build and use the MicoCharts project available here: https://github.com/dotnet-ad/Microcharts which is dependant on this SkiaSharp project available here: https://github.com/mono/SkiaSharp
The specific version I am attempting to use is 15.9.1 (the version that the nuget package downloads) which utilizes skia m59.
I need to build them myself and cannot use Nuget due to business restrictions, just use the package isn't an option for me.
I have built skia m59, SkiaSharp and MicroCharts but when I attempt to create a SKBitmap object I get an error when it attempts to initialize SkiaSharp.SKImageInfo. The error is as follows:
Unable to find an entry point named 'sk_color_get_bit_shift' in DLL 'libSkiaSharp'.
I had to make a few changes to the base BUILD.gn to point to the correct file locations, for the windows SDK and the VC install. I enabled skia_use_gdi in the BUILD.gn and ran the following commands.
python2 tools/git-sync-deps
gn gen out/Release --args="is_debug=false is_official_build=true skia_use_system_expat=false skia_use_system_libjpeg_turbo=false skia_use_system_libpng=false skia_use_system_libwebp=false skia_use_system_zlib=false skia_use_icu=false is_component_build=true"
ninja -C out/Release skia
This process outputs a DLL I assumed is the same as the libSkiaSharp that the SkiaSharp project relies on. I add all my references and run, the project runs successfully until I attempt to create the SkBitmap object then it fails.
Either this DLL is not the correct DLL and I am misunderstanding something here or something in my process is wrong. I would love any help I can get as I am completely new to building these sorts of projects, I am a C# developer by trade.
This is not the same thing. SkiaSharp has a few other bits that it adds to the core skia. The output that you would have got is a skia.dll, which only part. Not sure how you got a libSkiaSharp from the skia target...
If you can't use SkiaSharp from NuGet.org (which is the supported case) you can follow this to build your own: https://github.com/mono/SkiaSharp/wiki/Building-SkiaSharp
You can also check out the Azure DevOps yaml: https://github.com/mono/SkiaSharp/blob/master/scripts/azure-pipelines.yml
Just set up your own DevOps job to use that and all the work will be done for you.
I downloaded project to controlling AR Drone from this site:
https://github.com/Ruslan-B/AR.Drone
This project is old. Then I downloaded ffmpeg.autogen library from this site
https://sourceforge.net/projects/ffmpeg-autogen/?source=typ_redirect
This is old version of ffmpeg because of old version AR.Drone. I has to be .NET Framework 4.0 version.
Project has compiled, but when I run application I got an error:
"Unable to load DLL 'avcodec': The specified module could not be found. (Exception from HRESULT: 0x8007007E)"
The error occurs in this line:
FFmpegInvoke.avcodec_register_all();
I would advice to clone the project including submodules.
Here is the quote from README.md:
git clone http://github.com/Ruslan-B/AR.Drone.git
cd AR.Drone
git submodule update --init
It supposed download not only source code but compatible ffmpeg binaries as well.
As a next step you need to build AR.Drone solution with VS2012+ it going to build all dependencies for you and then you will be able to start AR.Drone.WinApp project. It will auto pickup the ffmpeg binaries by convention.
I've been using TuesPechkin for some time now and today I went to update the nuget package to the new version 2.0.0+ and noticed that Factory.Create() no longer resolved, so I went to read on the GitHub the changes made and noticed it now expects the path to the dll?
IConverter converter =
new ThreadSafeConverter(
new PdfToolset(
new StaticDeployment(DLL_FOLDER_PATH)));
For the past few hours I've tried almost all the paths I can think of, "\bin", "\app_data", "\app_start", etc and I can't seem to find or figure out what it wants for the path and what dll?
I can see the TuesPechkin dll in my bin folder and it was the first path I tried, but I got the following error:
Additional information: Unable to load DLL 'wkhtmltox.dll': The
specified module could not be found. (Exception from HRESULT:
0x8007007E)
Where is that dll and now can I get it as the library doesn't seem to contain it, I tried installing the TuesPechkin.Wkhtmltox.Win32 package but the dll still is nowhere to be found. Also I am using this in a asp.net website project so I assume that using the following should work for obtaining the path, right?
var path = HttpContext.Current.Server.MapPath(#"~\bin\TuesPechkin.dll");
Further information: https://github.com/tuespetre/TuesPechkin/issues/57
The Tuespechkin has a zip file as a resource in the Win32 and Win64 embedded packages for the 'wkhtmltox.dll' file.
What it does when you use the Win32 or Win64 Embedded package is unzips the file and places it in the directory that you specify.
I have been putting a copy of the wkhtmltox dll at the root portion of my web app directory and pointing the DLL_FOLDER_PATH to it using the server physical path of my web app to get to it.
According to the author, you must set the converter in a static field for best results.
I do that, but set the converter to null when I am finished using it, and that seems to work.
Tuespechkin is wrapper for the wmkhtmlox dll file.
The original file is written in C++ and so will not automatically be usable in C# or VB.NET or any of the other managed code domains.
The Tuespechkin.dll file DOES NOT contain a copy of 'wkhtmltox.dll'. You either have to use one of the other embedded deployment modules or install a copy of the 'wkhtmltox.dll' in your web app after downloading it from the internet. That is what I do, and it seems to work just fine.
I am using Team Foundation Server, and attempts to compile code after using the Tuespechkin routines will fail the first time because the 'wkhtmltox.dll' file gets locked, but all you have to do is simply retry your build and it will go through.
I had issues with the 32-bit routine not working in a 64-bit environment and the 64-bit environment not being testable on localhost. I went with the workaround I came up with after examining the source code for Tuespechkin and the Win32 and Win64 embedded deployment packages.
It works well as long as you specify a url for the input rather than raw html.
The older package didn't render css very well.
If you are using a print.aspx routine, you can create the url for it as an offset from your main url.
I don't have the source code I am using with me at this point to offset to your base url for your web application, but it is simply an offshoot of HttpRequest.
You have to use the physical path to find the .dll, but you can use a web path for the print routine.
I hope this answers your question a bit.
If you are getting this error -> Could not load file or assembly 'TuesPechkin.Wkhtmltox.Win64' or one of its dependencies. An attempt was made to load a program with an incorrect format.
In Visual Studio Go to -
Tools -> Options -> Projects and Solutions -> Web Projects -> Use the 64 bit version of IIS Express for web sites and projects.
I installed TuesPechkin.Wkhtmltox.Win64 Nuget package and used the following code in a singleton:
public class PechkinPDFConvertor : IPDFConvertor
{
IConverter converter =
new ThreadSafeConverter(
new RemotingToolset<PdfToolset>(
new Win64EmbeddedDeployment(
new TempFolderDeployment())));
public byte[] Convert(string html)
{
// return PechkinSync.Convert(new GlobalConfig(), html);
return converter.Convert(new HtmlToPdfDocument(html));
}
}
The web application then has to be run in x64 otherwise you will get an error about trying to load an x64 assembly in an x86 environment. Presumably you have to choose x64 or x86 at design time and use the corresponding nuget package, it would be nicer to choose this in the web.config.
EDIT: The above code failed on one server with the exact same message as yours - it was due to having not installed VC++ 2013. So the new code is running x86 as follows
try
{
string path = Path.Combine(Path.GetTempPath(), "MyApp_PDF_32");
Converter = new ThreadSafeConverter(
new RemotingToolset<PdfToolset>(
new Win32EmbeddedDeployment(
new StaticDeployment(path))));
}
catch (Exception e)
{
if (e.Message.StartsWith("Unable to load DLL 'wkhtmltox.dll'"))
{
throw new InvalidOperationException(
"Ensure the prerequisite C++ 2013 Redistributable is installed", e);
}
else
throw;
}
If you do not want run the installer for wkhtmltox just to get the dll, you can do the following:
As #Timothy suggests, if you use the embedded version of wkhtmltox.dll from TuesPechkin, it will unzip it and place it in a temp directory. I copied this dll and referenced it with the StaticDeployment option without any issues.
To find the exact location, I just used Process Monitor (procmon.exe). For me it was C:\Windows\Temp\-169958574\8\0.12.2.1\wkhtmltox.dll
In my case, I am deploying on a 64-bit VPS then I got this error. I have solved the problem by installing the wkhtmltopdf that I downloaded from http://wkhtmltopdf.org/downloads.html. I chose the 32-bit installer.
In my case, I have solved the problem by installing the Wkhtmltox for win32 at https://www.nuget.org/packages/TuesPechkin.Wkhtmltox.Win32/
This error: Unable to load DLL 'wkhtmltox.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E) is returned in two situations:
1- Deploy dependency not installed:
For solve this, you can install nuget package "TuesPechkin.Wkhtmltox.Win64" and use this code (for WebApplications running in IIS):
IConverter converter =
new ThreadSafeConverter(
new RemotingToolset<PdfToolset>(
new Win64EmbeddedDeployment(
new TempFolderDeployment())));
// Keep the converter somewhere static, or as a singleton instance!
// Do NOT run the above code more than once in the application lifecycle!
byte[] result = converter.Convert(document);
In runtime this code will copy the dependency "wkhtmltox.dll" in a temporary directory like: "C:\Windows\Temp\1402166677\8\0.12.2.1". It's possible to get the destination of file using:
var deployment = new Win64EmbeddedDeployment(new TempFolderDeployment());
Console.WriteLine(deployment.Path);
2- Microsoft Visual C++ 2013 Redistributable not installed:
As described here:
https://github.com/tuespetre/TuesPechkin/issues/65#issuecomment-71266114, the Visual C++ 2013 Runtime is required.
The solution from README is:
You must have Visual C++ 2013 runtime installed to use these packages. Otherwise, you will need to download the MingW build of wkhtmltopdf and its dependencies from their website and use that with the library. https://github.com/tuespetre/TuesPechkin#wkhtmltoxdll
or, you can install the Microsoft Visual C++ 2013 Redistributable:
choco install msvisualcplusplus2013-redist
Here is AnyCpu version, also support iis-base or winform application
using TuesPechkin.Wkhtmltox.AnyCPU;
...
var converter = PDFHelper.Factory.GetConverter();
var result = converter.Convert(This.Document);
Reference : https://github.com/tloy1966/TuesPechkin
Installing the Visual C++ Redistributable for Visual Studio 2013 resolved the error for me.
https://www.microsoft.com/en-us/download/details.aspx?id=40784
I am very much interested in ILNUmerics and would like to try the free version, but I am having troubles.
I have started with a console application and was trying to run the 'hello ilnumerics'console application but I noticed that VS fails to find MKL libraries.
I am using VS2012 under Windwos 8 (through Bootcamp on a MacBook Pro mid 2010; should it be relevant); I have installed the NuGet Packages extension from the Project solution. Then right-click on references in the solution explorer, 'Manage Nu Get Packages', fron online/search found ilnumerics in various versions. I chose 'ILNumerics' and install. I got 'ILNumerics' and 'ILNumerics.Native' added to my project. Then I can see ILNumerics under 'References' in Solution Explorer and also get two new folders /bin32/ and /bin64/ they both contain two DLLs named: libiomp5md.dll and mkl_custom.dll. I have checked their
'Copy to Ouput Directory' property and they are all set to 'Copy if newer'.
Apparently mkl_custom is not found. I write the following code, taken from the quickstart guide:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ILNumerics;
namespace ConsoleApplication3
{
class Program : ILMath
{
static void Main(string[] args)
{
ILArray<double> A = array<double>
(new double[] { 1,1,1,1,1,2,3,4,1,3,6,10,1,4,10,20} ,4, 4);
ILArray<double> B = counter(4, 2);
ILArray<double> Result = linsolve(A, B);
Console.Out.WriteLine("A: " + Environment.NewLine +
A.ToString());
Console.Out.WriteLine("B: " + Environment.NewLine + B.ToString());
Console.ReadKey();
}
}
}
and I get this exception:
An unhandled exception of type 'System.DllNotFoundException' occurred in ILNumerics.dll
Additional information: Unable to load DLL 'mkl_custom': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
If I do not invoke linsolve the ToString method of ILArray does work: if I comment // ILArray Result = linsolve(A, B);
I get the two matrices printed on the screen.
I have also tried to compute the determinant of a matrix and got the same exception: apparently any time I call mkl_custom VS is not capable to find it.
Any help/hint, please?
Also, is it necessary to install ILNumerics through NuGet on any project added to the solution? Would it be possible to install it locally once for all and then add the reference if necessary?
Two options:
1) Make sure, all binaries are accesible as intended: ILNumerics uses AnyCPU targets and chooses the platform dependend subfolder by adding the "bin32" / "bin64" directories to the PATH envoronment variable on startup. Possibly there is something failing on your machine? You can make sure by placing the correct binaries (depending on your platform) directly into the output path manually.
2) In case the error persists: mkl_custom.dll depends on some other dlls itself. One (libiomp5md.dll) is delivered with the ILNumerics nuget package. Others are expected to exist on your system: KERNEL32.DLL and MSVCR110.DLL. Make sure, you have these! If the kernel dll was missing -> call it a miracle and reinstall your system. If the msvcr110 is missing -> go here and install the "Visual C++ Redistributable for Visual Studio 2012".
In case the problem persists, you may file a bug on the ILNumerics bugtracker, because, the runtime should be there, as you wrote you are using VS2012. Possibly it is a versioning problem though.
EDIT: Since version 4.0 ILNumerics does not deploy the native binaries in bin32/ bin64/ subfolder anymore but installs all native dependencies systemwide into the GAC and System32/WOW folders. The old scheme will still work (for compatibility with old projects) though. But it is not necessary anymore to deal with any dependancies for ILNumerics explicitly. They should simply be found at runtime.
Like numbers303 said, ILNumerics.dll can't find a required dependency. You can brute force fixing this dependency by copying the required DLLs to the same directory as the ILNumerics.dll as a post build step, but I think there's a more elegant solution.
A VS2010 .NET console solution gets created by default with the x86 configuration. Compiling and running the ILNumerics example Hello ILNumerics! code with this configuration results in a DLL not found exception (mkl_custom.dll).
Re-targeting the solution via configuration manager to 'Any CPU' fixed the issue for me:
In Solution Explorer, right click on the solution and select properties. Select Configuration Properties and click on the Configuration Manager... button in the upper right hand corner. Make sure that the project that uses ILNumerics has the 'Any CPU' selected. If 'Any CPU' isn't available as a selection, select '' from the pulldown and create an 'Any CPU' platform based on your current platform. Usually this just means accepting the default in the 'New Project Platform' dialog. You'll probably also want to modify the 'Active solution platform:' to contain an 'Any CPU' target as well.
Rebuild/run.
In my case it helped to install "Visual C++ Redistributable for Visual Studio 2012" although I work with Visual Studio 2010 with the corresponding "Visual C++ Redistributable for Visual Studio 2010" installed. Which worked fine as long as the mkl_custom.dll is not needed. But colleagues of mine dosn't have this problem without having the 2012 Redistributable installed.