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"Failed to initialize Vuforia" Error on multiple versions of Android device

October 7, 2017 - 6:32am #1

Hi,

 

I just got started on native Android development on Android Studio with Vuforia Android SDK. However, both Android sample apps (VuforiaSamples-6-5-19 and Books-6-5-19) encounter "Failed to initialize Vuforia" error. I've tried changing the targetSdkVersion to targetSdkVersion = 24  in build.gradle and Manifest.xml, but to no avail. 

Besides, I've also manually granted the permission to camera access on the device. 

So far I have tested with Android 7.0, 6.0, and 5.1 with the exact same error. 

 

Any help would be very much appreciated.

 

Thanks in advance!

monkeyhanny
Joined:
October 4, 2017
Posts: 15
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"Failed to initialize Vuforia" Error on multiple versions of Android device

October 11, 2017 - 8:51pm #5

Hi Strasza,

 

Thank you so much. 

I wasn't aware that the license key was missing in the project. The sample app is working now. 

 

 

monkeyhanny
Joined:
October 4, 2017
Posts: 15
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"Failed to initialize Vuforia" Error on multiple versions of Android device

October 9, 2017 - 9:18am #4

Hello monkeyhanny,

Have you added a Vuforia license to your project? If you look in the file SampleApplicationSession.java found in the sample apps, you'll see the following function called: Vuforia.setInitParameters(). The last parameter in this function needs to be a license key for Vuforia to initialize properly.

Thanks,

-Vuforia Support

Strasza
Joined:
June 13, 2017
Posts: 1717
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"Failed to initialize Vuforia" Error on multiple versions of Android device

October 8, 2017 - 7:52am #3

Hi Vinny92,

 

I have define the Vuforia SDK folder in build.gradle(Module:app) as def VUFORIA_SDK_DIR = 'C:\\(somepath)\\vuforia-sdk-android-6-5-19'

and Vuforia.jar file is already placed under the path vuforia-sdk-android-6-5-19\build\java\vuforia\Vuforia.jar, and a libVuforia.so file under both vuforia-sdk-android-6-5-19\build\lib\armeabi-v7a folder and vuforia-sdk-android-6-5-19\build\lib\arm64-v8a folder. 

The sample project can be compiled without any error as well. 

 

monkeyhanny
Joined:
October 4, 2017
Posts: 15
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"Failed to initialize Vuforia" Error on multiple versions of Android device

October 8, 2017 - 6:21am #2

Hi,

 

Did you add Vuforia.jar and iso files in libs folder

vinny92
Joined:
October 4, 2017
Posts: 4
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