Hello, I am using Buildbox 2.2.7 and I used to export app using Android Studio. It seems easy to me. But recently I have found that after adding AdMob ads, my app is crushing (“Unfortunately, <app name> has stopped”) on android 4 (4.2,4.4). It's running nicely on Android 5 & 5+ . Please Help me to solve the problem. Here is the log: ------------------- java.lang.NoClassDefFoundError in com.google.android.gms.ads.internal.zzs.<init> java.lang.NoClassDefFoundError: android.support.v4.util.SimpleArrayMap at com.google.android.gms.ads.internal.zzs.<init>(Unknown Source) at com.google.android.gms.ads.internal.zzs.<init>(Unknown Source) at com.google.android.gms.ads.internal.zzb.<init>(Unknown Source) at com.google.android.gms.ads.internal.zzc.<init>(Unknown Source) at com.google.android.gms.ads.internal.zzf.<init>(Unknown Source) at com.google.android.gms.ads.internal.ClientApi.createBannerAdManager(Unknown Source) at com.google.android.gms.ads.internal.client.zzl.createBannerAdManager(Unknown Source) at com.google.android.gms.ads.internal.client.zze.zza(Unknown Source) at com.google.android.gms.ads.internal.client.zzab.zzdh(Unknown Source) at com.google.android.gms.ads.internal.client.zzab.zzdg(Unknown Source) at com.google.android.gms.ads.internal.client.zzab.zza(Unknown Source) at com.google.android.gms.ads.BaseAdView.loadAd(Unknown Source) at com.google.android.gms.ads.AdView.loadAd(Unknown Source) at com.secrethq.ads.PTAdAdMobBridge$1.run(PTAdAdMobBridge.java:72) at android.os.Handler.handleCallback(Handler.java:808) at android.os.Handler.dispatchMessage(Handler.java:103) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:5292) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645) at dalvik.system.NativeStart.main(Native Method)
Ok, Thanks ! I was using Android Studio, but now I have tried ADT with API 23 & the app is working on Android 4 now Buildbox user should only use ADT (Eclipse+SDK), not Android Studio