Throws Neurotec.NotActivatedException

[mprasanna]

I was developing an application following the sample SimpleFacesSamplesCS. I wrote the code similar what is there in EnrollFromCamera. I can run the sample using VS2012 and the components needed shows green. When I run my program, during _biometricClient.EndCapture(ar) call I get Neurotec.NotActivatedException. Please help resolve the issue. I am not sure what should I do resolve the issue. I can share the sample program if required.

Thanks and regards
Prasanna

[vaidasz]

I was developing an application following the sample SimpleFacesSamplesCS. I wrote the code similar what is there in EnrollFromCamera. I can run the sample using VS2012 and the components needed shows green. When I run my program, during _biometricClient.EndCapture(ar) call I get Neurotec.NotActivatedException. Please help resolve the issue. I am not sure what should I do resolve the issue. I can share the sample program if required.

Thanks and regards
Prasanna

Hello Prasanna,

If you use SDK structure, the licenses must be placed at SDK\Bin\Licenses or at the same folder where application startup path is. If you moved the sample out of the SDK structure or developed you application, copy the licenses you want to use to the same folder where application startup folder is.
It is not a must to have the licenses at the application startup folder. You could load the licenses in the source code by using NLicense.Add(LICENSE_READ_AS_STRING) when developing your application.

[mprasanna]

As suggested, I added the following code in Load event.

Code: Select all

NLicense.Add("Biometrics.FaceDetection");
NLicense.Add("Biometrics.FaceExtraction");
NLicense.Add("Devices.Cameras");


After that I am getting the following exception.
{"License is invalid or unsupported\r\nParameter name: hLicense"}

Please help resolve the issue.

Thanks
Prasanna

[mprasanna]

Update in the issue:

After adding the following code, I could proceed further.

Code: Select all

            const string Components = "Biometrics.FaceExtraction,Biometrics.FaceMatching,Biometrics.FaceDetection,Devices.Cameras,Biometrics.FaceSegmentsDetection";
            foreach (string component in Components.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
            {
                NLicense.ObtainComponents(LicenseUtil.Address, LicenseUtil.Port, component);
            }


But while extracting on the call biometricClient.ForceStart() I got the exception Neurotec.NAggregateException. Below is the stack trace for the exception.

at Neurotec.NResult.RaiseError(Int32 error)
at Neurotec.NResult.Check(Int32 result)
at Neurotec.NAsyncOperation.get_Result()
at Neurotec.NAsyncOperation`1.get_Result()
at Neurotec.NAsyncResult.End[T](IAsyncResult asyncResult)
at Neurotec.Biometrics.Client.NBiometricClient.EndCapture(IAsyncResult asyncResult)

Please help resolve the issue. If I run the sample it runs fine without any exception.

Thanks and regards
Prasanna

[vaidasz]

As suggested, I added the following code in Load event.

Code: Select all

NLicense.Add("Biometrics.FaceDetection");
NLicense.Add("Biometrics.FaceExtraction");
NLicense.Add("Devices.Cameras");


After that I am getting the following exception.
{"License is invalid or unsupported\r\nParameter name: hLicense"}

Please help resolve the issue.

Thanks
Prasanna

Hello,

You are trying to load components which is incorrect. These components must be used with NLicense.ObtainComponents() method.
You need to pass license file read as string dor NLicense.Add() method. You could use NLicense.Add(File.ReadAllText(PATH_TO_LICENSE)).

Update in the issue:

After adding the following code, I could proceed further.

Code: Select all

            const string Components = "Biometrics.FaceExtraction,Biometrics.FaceMatching,Biometrics.FaceDetection,Devices.Cameras,Biometrics.FaceSegmentsDetection";
            foreach (string component in Components.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
            {
                NLicense.ObtainComponents(LicenseUtil.Address, LicenseUtil.Port, component);
            }


But while extracting on the call biometricClient.ForceStart() I got the exception Neurotec.NAggregateException. Below is the stack trace for the exception.

at Neurotec.NResult.RaiseError(Int32 error)
at Neurotec.NResult.Check(Int32 result)
at Neurotec.NAsyncOperation.get_Result()
at Neurotec.NAsyncOperation`1.get_Result()
at Neurotec.NAsyncResult.End[T](IAsyncResult asyncResult)
at Neurotec.Biometrics.Client.NBiometricClient.EndCapture(IAsyncResult asyncResult)

Please help resolve the issue. If I run the sample it runs fine without any exception.

Thanks and regards
Prasanna

In this example you use components correctly. But you need to ensure you have required license first - either copy it to the same folder as your application startup folder is or load it using NLicense.Add().
The exception message you specified is incomplete. Please provide full exception message.
By the way, NLicense.ObtainComponents() returns bool value so you could use: bool isObtained = NLicense.ObtainComponents().

[mprasanna]

Like the sample, I have two buttons one for starting the camera and one for extracting face template. On start button click it works fine and shows the image. But on click if extract the exception is thrown. I am calling

Code: Select all

biometricClient.ForceStart();

on extract button click.

Here is the complete stack trace from the exception object.

at Neurotec.NResult.RaiseError(Int32 error)
at Neurotec.NResult.Check(Int32 result)
at Neurotec.NAsyncOperation.get_Result()
at Neurotec.NAsyncOperation`1.get_Result()
at Neurotec.NAsyncResult.End[T](IAsyncResult asyncResult)
at Neurotec.Biometrics.Client.NBiometricClient.EndCapture(IAsyncResult asyncResult)
at SampleFaceDetect.EnrollFromCamera.OnCapturingCompleted(IAsyncResult ar) in d:\Projects\SampleFaceDetect\SampleFaceDetect\EnrollFromCamera.cs:line 75

If I run or even modify the code of sample and run, there are no errors.

[vaidasz]

Like the sample, I have two buttons one for starting the camera and one for extracting face template. On start button click it works fine and shows the image. But on click if extract the exception is thrown. I am calling

Code: Select all

biometricClient.ForceStart();

on extract button click.

Here is the complete stack trace from the exception object.

at Neurotec.NResult.RaiseError(Int32 error)
at Neurotec.NResult.Check(Int32 result)
at Neurotec.NAsyncOperation.get_Result()
at Neurotec.NAsyncOperation`1.get_Result()
at Neurotec.NAsyncResult.End[T](IAsyncResult asyncResult)
at Neurotec.Biometrics.Client.NBiometricClient.EndCapture(IAsyncResult asyncResult)
at SampleFaceDetect.EnrollFromCamera.OnCapturingCompleted(IAsyncResult ar) in d:\Projects\SampleFaceDetect\SampleFaceDetect\EnrollFromCamera.cs:line 75

If I run or even modify the code of sample and run, there are no errors.

Hello,

You specified StackTrace. Please specify Message of exception you get.

[ArtificialInsights]

For people that are new to using Neurotechnology Biometrics, the documentation can be very hard to understand. When it was written, I think the writers should have taken a better approach with examples and explanations in the manual, instead of simply referring to the samples and tutorials.

When you are setting up your application, you must copy all of the files from SDK/Bin/Win32_x86 or SDK/Bin/Win64_x64 into the debug folder or your application. To do this, create the application, then run it. Exit out and then the debug folder will exist. Then, you need to reference all the .dll files found in SDK/Bin/dotNET in Visual Studio (Right click on References, Add References)

Once this is complete, add the following to the top of the application:

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using Neurotec.Biometrics;
using Neurotec.Biometrics.Client;
using Neurotec.Licensing;

Then, add this line to the main class:

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const string Components = "Biometrics.FingerExtraction,Biometrics.FingerMatching";

Add all necessary license function to that line.

Next, you need to add the License Information and obtain the license. Add this to the applications main constructor so it runs when the application is initialized:

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            // Fingerprint Client
            NLicense.Add(":0000000 ... DF1C78"); // Long line of characters found inside the License file, starts with a :
            // Fingerprint Matcher
            NLicense.Add(":0000000 ... F31C66"); // Long line of characters found inside the License file, starts with a :

                // Obtain license
                if (!NLicense.ObtainComponents("/local", 5000, Components))
                {
                    throw new ApplicationException(
                        string.Format("Could not obtain licenses for components: {0}", Components));
                }

And thats it, in a nutshell. In this example, I am assuming you are using Visual Studio with C#... but the basics will apply to just about everything I think.
Hope this helps...