For implementing Machine Learning in an Android Application, I am using 'WEKA Tool' which I have included it on the Project 'libs' and compile it from the 'gradle' of project.
But while running on the phone when that functions invoked which doing the classification (calling 'RandomForest Classifier'), my app goes crashed.
I am getting this 'Runtime Error'. Can anyone help me please?
Unable to create WEKA_HOME (/wekafiles)
Unable to create packages directory (/wekafiles/packages)
Unable to create repository cache directory (/wekafiles/repCache)
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.weirdmyth.testapp, PID: 31474
java.lang.NoClassDefFoundError: Failed resolution of: Ljava/awt/GraphicsEnvironment;
at weka.core.packageManagement.PackageManager.setProxyAuthentication(PackageManager.java:191)
at weka.core.WekaPackageManager.establishWekaHome(WekaPackageManager.java:377)
at weka.core.WekaPackageManager.<clinit>(WekaPackageManager.java:162)
at weka.core.Utils.readProperties(Utils.java:174)
at weka.core.Capabilities.<init>(Capabilities.java:275)
at weka.classifiers.AbstractClassifier.getCapabilities(AbstractClassifier.java:508)
at weka.classifiers.trees.RandomTree.getCapabilities(RandomTree.java:602)
at weka.classifiers.trees.RandomForest.getCapabilities(RandomForest.java:182)
at weka.classifiers.meta.Bagging.buildClassifier(Bagging.java:701)
at com.example.weirdmyth.testapp.MainActivity.showExtractData(MainActivity.java:68)
at com.example.weirdmyth.testapp.MainActivity.access$000(MainActivity.java:18)
at com.example.weirdmyth.testapp.MainActivity$1.onClick(MainActivity.java:35)
at android.view.View.performClick(View.java:4794)
at android.view.View$PerformClick.run(View.java:19905)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:139)
at android.app.ActivityThread.main(ActivityThread.java:5298)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745)
Caused by: java.lang.ClassNotFoundException: Didn't find class "java.awt.GraphicsEnvironment" on path: DexPathList[[dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-weka_24a0e957b7a2bd7b1eca884c1d1fe17134d04e02-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-support-annotations-24.2.0_1d91a870686be0d9b2c0cad6f095599608f8ea8b-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_9-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_8-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_7-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_6-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_5-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_4-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_3-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_2-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_1-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-slice_0-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_e60a43d4d67966d22f555860d8f3ea89bf40a00d-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_bab1238d93c9b1e214aa74253243e0e0a1179d1b-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_ac3ce21dd47241b373379a2a2250d916ddec89f2-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_86622e6ad735878a3262fd8fb6bc9c316447f2bd-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-internal_impl-24.2.0_024d25ee6599778d6213941fb989deeaa23d0a37-classes.dex", dex file "/data/data/com.example.weirdmyth.testapp/files/instant-run/dex/slice-com.android.support-support-vector-drawable-24.2.0_a300254740b0ce696848c36d6b2c7e26898aba9c-classes.dex", dex file "/data/data/com.example
try using this one: https://github.com/rjmarsan/Weka-for-Android
As writer says: and 100% functionality is not promised. However, it's sure better than nothing.