I'm a total Android newbie here, so hopefully someone can help me out.
I have an Android library (myLib.aar) that I am including/using in the HelloAR demo app.
Now, I want to use Instacapture within myLib.aar. I followed the instructions on the README:
dependencies {
...
compile "com.github.tarek360:instacapture:2.0.1"
}
allprojects {
repositories {
...
maven { url "https://jitpack.io" }
}
}
I also tried downloading, compiling instacapture source, adding the instacapture.aar to my libs dir and modifying my Gradle files:
dependencies{
...
implementation(name:'instacapture', ext:'aar')
}
allprojects {
repositories {
...
flatDir {
dirs 'libs'
}
}
In both cases, I get the following exception:
--------- beginning of crash
2020-08-11 22:34:35.965 32761-32761/com.google.ar.core.examples.java.helloar E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.google.ar.core.examples.java.helloar, PID: 32761
java.lang.NoClassDefFoundError: Failed resolution of: Lcom/tarek360/instacapture/Instacapture;
at com.cambridge.myLib.ScreenShotter.takeScreenshot(ScreenShotter.java:139)
at com.google.ar.core.examples.java.helloar.HelloArActivity$2.run(HelloArActivity.java:164)
at com.google.ar.core.examples.java.helloar.HelloArActivity.startRepeatingTask(HelloArActivity.java:171)
at com.google.ar.core.examples.java.helloar.HelloArActivity$1.run(HelloArActivity.java:152)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8107)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.tarek360.instacapture.Instacapture" on path: DexPathList[[zip file "/data/app/com.google.ar.core.examples.java.helloar-bhCcJ--GEjsJ6mxAFvnUYw==/base.apk"],nativeLibraryDirectories=[/data/app/com.google.ar.core.examples.java.helloar-bhCcJ--GEjsJ6mxAFvnUYw==/lib/arm64, /data/app/com.google.ar.core.examples.java.helloar-bhCcJ--GEjsJ6mxAFvnUYw==/base.apk!/lib/arm64-v8a, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:196)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.cambridge.myLib.ScreenShotter.takeScreenshot(ScreenShotter.java:139)
at com.google.ar.core.examples.java.helloar.HelloArActivity$2.run(HelloArActivity.java:164)
at com.google.ar.core.examples.java.helloar.HelloArActivity.startRepeatingTask(HelloArActivity.java:171)
at com.google.ar.core.examples.java.helloar.HelloArActivity$1.run(HelloArActivity.java:152)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8107)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
However, if I add the dependencies to the main HelloAR app (as per the instructions in the README), the issue resolves.
Can someone please explain what is going on, why I'm getting the error, and how to resolve it without having to add the dependencies to the main HelloAR app?
