**java.lang.NoClassDefFoundError: Failed resolution of: Lcom/facebook/ads/internal/api/Repairable;**
at dalvik.system.DexFile.defineClassNative(Native Method)
at dalvik.system.DexFile.defineClass(DexFile.java:296)
at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:289)
at dalvik.system.DexPathList.findClass(DexPathList.java:418)
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at java.lang.Class.newInstance(Native Method)
at com.facebook.ads.internal.dynamicloading.DynamicLoaderFactory.doMakeLoader(DynamicLoaderFactory.java:222)
at com.facebook.ads.internal.dynamicloading.DynamicLoaderFactory.access$000(DynamicLoaderFactory.java:41)
at com.facebook.ads.internal.dynamicloading.DynamicLoaderFactory$1.run(DynamicLoaderFactory.java:101)
at java.lang.Thread.run(Thread.java:761)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.facebook.ads.internal.api.Repairable" on path: DexPathList[[dex file "/data/user/0/com.ppop.keys/files/audience_network.dex"],nativeLibraryDirectories=[/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)
at dalvik.system.DexFile.defineClassNative(Native Method)
at dalvik.system.DexFile.defineClass(DexFile.java:296)
at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:289)
at dalvik.system.DexPathList.findClass(DexPathList.java:418)
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at java.lang.Class.newInstance(Native Method)
at com.facebook.ads.internal.dynamicloading.DynamicLoaderFactory.doMakeLoader(DynamicLoaderFactory.java:222)
at com.facebook.ads.internal.dynamicloading.DynamicLoaderFactory.access$000(DynamicLoaderFactory.java:41)
at com.facebook.ads.internal.dynamicloading.DynamicLoaderFactory$1.run(DynamicLoaderFactory.java:101)
at java.lang.Thread.run(Thread.java:761)