Hello,
I am currently upgrading a Vuforia based Unity project from Vuforia 6.2 to 7.1.35
However I am unable to build a working version of the project onto an Android device now that I have updated the Vuforia version the project uses.
All I see when I go to scan something, is a black screen.
When I check the logs it appears that Vuforia is failing to initialize:
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AndroidJavaException: java.lang.ClassNotFoundException: com.vuforia.VuforiaUnityPlayer.VuforiaInitializer java.lang.ClassNotFoundException: com.vuforia.VuforiaUnityPlayer.VuforiaInitializer at java.lang.Class.classForName(Native Method) at java.lang.Class.forName(Class.java:400) at java.lang.Class.forName(Class.java:326) at com.unity3d.player.UnityPlayer.nativeRender(Native Method) at com.unity3d.player.UnityPlayer.c(Unknown Source) at com.unity3d.player.UnityPlayer$d$1.handleMessage(Unknown Source) at android.os.Handler.dispatchMessage(Handler.java:98) at android.os.Looper.loop(Looper.java:154) at com.unity3d.player.UnityPlayer$d.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.vuforia.VuforiaUnityPlayer.VuforiaInitializer" on path: DexPathList[[zip file "/data/app/APPID-1/base.apk"],nativeLibraryDirectories=[/data/app/APPID-1/lib/arm, /data/app/APPID-1/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:380) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) ... 9 more at UnityEngine.AndroidJNISafe.CheckException () [0x0008c] in /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJNISafe.cs:24 at UnityEngine.AndroidJNISafe.CallStaticObjectMethod (IntPtr clazz, IntPtr methodID, UnityEngine.jvalue[] args) [0x00011] in /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJNISafe.cs:207 at UnityEngine.AndroidJavaObject._CallStatic[AndroidJavaObject] (System.String methodName, System.Object[] args) [0x002d8] in /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:460 at UnityEngine.AndroidJavaObject.CallStatic[AndroidJavaObject] (System.String methodName, System.Object[] args) [0x00004] in /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/AndroidJavaBindings.gen.cs:82 at UnityEngine.AndroidJavaObject.FindClass (System.String name) [0x0001e] in /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:591 at UnityEngine.AndroidJavaClass._AndroidJavaClass (System.String className) [0x00013] in /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:611 at UnityEngine.AndroidJavaClass..ctor (System.String className) [0x00009] in /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/AndroidJavaBindings.gen.cs:92 at Vuforia.AndroidUnityPlayer.LoadNativeLibrariesFromJava () [0x00000] in <filename unknown>:0 at Vuforia.AndroidUnityPlayer.InitAndroidPlatform () [0x00000] in <filename unknown>:0 at Vuforia.AndroidUnityPlayer.InitializePlatform () [0x00000] in <filename unknown>:0 at Vuforia.VuforiaRuntime.InitPlatform (IUnityPlayer player) [0x00000] in <filename unknown>:0 at Vuforia.PlatformRuntimeInitialization.InitPlatform () [0x00000] in <filename unknown>:0
(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJNISafe.cs Line: 24)
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Does anyone know what could possibly be causing this error/behaviour?
Thanks,
SmithDavis
Same here.
Same here.
Unity 2018.1.0f2
Vuforia 7.2.20
Android build using IL2CPP
AndroidJavaException: java.lang.ClassNotFoundException: com.vuforia.VuforiaUnityPlayer.VuforiaInitializer
Hello SmithDavis,
Hello SmithDavis,
Are you seeing this in any new projects created in 7.1.35? We have migration guides in our Library such as this one: https://library.vuforia.com/content/vuforia-library/en/articles/Solution/migrate-vuforia-62-to-65.html Can you confirm that you followed such steps?
Hi Strasza,
Hi Strasza,
I figured out that this problem was simply being caused by a directory naming issue, where a * was being used where it shouldn't have been.
This didn't appear to prevent Vuforia 6.2 from working but now prevents Vuforia 6.5+ from being compiled properly.
I am seeing this issue in
I am seeing this issue in Unity 2018.1 and Unity 2018.2. I have Vuforia 7.2.20 installed. When running on Android the logs state it cannot find the Dll files for Vuforia.