hy,

after i do everything i get the following errors when trying to generate the apk

Error:Internal error: (java.lang.ClassNotFoundException) com.google.wireless.android.sdk.stats.IntellijIndexingStats$Index
java.lang.ClassNotFoundException: com.google.wireless.android.sdk.stats.IntellijIndexingStats$Index
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at com.intellij.util.indexing.counters.IndexCounters.(IndexCounters.java:34)
at com.intellij.util.indexing.impl.MapReduceIndex.(MapReduceIndex.java:94)
at com.intellij.util.indexing.impl.MapReduceIndex.(MapReduceIndex.java:110)
at org.jetbrains.jps.backwardRefs.index.CompilerReferenceIndex$CompilerMapReduceIndex.(CompilerReferenceIndex.java:248)
at org.jetbrains.jps.backwardRefs.index.CompilerReferenceIndex.(CompilerReferenceIndex.java:84)
at org.jetbrains.jps.backwardRefs.JavaCompilerBackwardReferenceIndex.(JavaCompilerBackwardReferenceIndex.java:12)
at org.jetbrains.jps.backwardRefs.JavaBackwardReferenceIndexWriter.initialize(JavaBackwardReferenceIndexWriter.java:80)
at org.jetbrains.jps.incremental.java.JavaBuilder.buildStarted(JavaBuilder.java:149)
at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:359)
at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:178)
at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:139)
at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:288)
at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:121)
at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:228)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)