title: Android Studio 3.3: New Gradle Sync is not supported due to containing Kotlin modules (invalid type code: 68)
body: <p>in a java-kotlin hybrid using Android Studio 3.3 and above, I get an <em>invalid type code: 68</em> error message. When using gradle 5.1 and above I get an additional message saying "<em>New Gradle Sync is not supported due to containing Kotlin modules</em>"</p>
  
  <p>How to reproduce in android studio 3.3:</p>
  
  <p>1) create a new android project in java with a blank activity</p>
  
  <p>2) create a kotlin class file</p>
  
  <p>3) click on the configure kotlin button to add the kotlin plugins and library to the project</p>
  
  <p>4) sync gradle</p>
  
  <p>My projects used to run fine on the previous Android Studio stable release (3.2.1)</p>
  
  <p>full stack trace:</p>
  
  <pre><code>org.gradle.tooling.GradleConnectionException: Could not run build action using Gradle distribution 'https://services.gradle.org/distributions/gradle-5.1.1-all.zip'.
      at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:55)
      at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:29)
      at org.gradle.tooling.internal.consumer.ResultHandlerAdapter.onFailure(ResultHandlerAdapter.java:41)
      at org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:57)
      at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
      at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
      at java.lang.Thread.run(Thread.java:745)
      at org.gradle.tooling.internal.consumer.BlockingResultHandler.getResult(BlockingResultHandler.java:46)
      at org.gradle.tooling.internal.consumer.DefaultBuildActionExecuter.run(DefaultBuildActionExecuter.java:65)
      at com.android.tools.idea.gradle.project.sync.ng.SyncExecutor.doFetchModels(SyncExecutor.java:255)
      at com.android.tools.idea.gradle.project.sync.ng.SyncExecutor.executeFullSync(SyncExecutor.java:239)
      at com.android.tools.idea.gradle.project.sync.ng.SyncExecutor.syncProject(SyncExecutor.java:197)
      at com.android.tools.idea.gradle.project.sync.ng.SyncExecutor.lambda$syncProject$1(SyncExecutor.java:134)
      at org.jetbrains.plugins.gradle.service.execution.GradleExecutionHelper.execute(GradleExecutionHelper.java:209)
      at com.android.tools.idea.gradle.project.sync.ng.SyncExecutor.syncProject(SyncExecutor.java:139)
      at com.android.tools.idea.gradle.project.sync.ng.NewGradleSync.sync(NewGradleSync.java:185)
      at com.android.tools.idea.gradle.project.sync.ng.NewGradleSync.access$000(NewGradleSync.java:59)
      at com.android.tools.idea.gradle.project.sync.ng.NewGradleSync$2.run(NewGradleSync.java:151)
      at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:736)
      at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:157)
      at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:580)
      at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:525)
      at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:85)
      at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:144)
      at com.intellij.openapi.progress.impl.CoreProgressManager$4.run(CoreProgressManager.java:395)
      at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:314)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: org.gradle.api.UncheckedIOException: java.io.StreamCorruptedException: invalid type code: 68
      at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:61)
      at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:41)
      at org.gradle.tooling.internal.provider.serialization.PayloadSerializer.deserialize(PayloadSerializer.java:76)
      at org.gradle.tooling.internal.provider.ProviderConnection.throwFailure(ProviderConnection.java:205)
      at org.gradle.tooling.internal.provider.ProviderConnection.run(ProviderConnection.java:193)
      at org.gradle.tooling.internal.provider.ProviderConnection.runClientAction(ProviderConnection.java:153)
      at org.gradle.tooling.internal.provider.ProviderConnection.run(ProviderConnection.java:143)
      at org.gradle.tooling.internal.provider.DefaultConnection.run(DefaultConnection.java:222)
      at org.gradle.tooling.internal.consumer.connection.ParametrizedActionRunner.execute(ParametrizedActionRunner.java:36)
      at org.gradle.tooling.internal.consumer.connection.CancellableActionRunner.run(CancellableActionRunner.java:51)
      at org.gradle.tooling.internal.consumer.connection.AbstractConsumerConnection.run(AbstractConsumerConnection.java:63)
      at org.gradle.tooling.internal.consumer.connection.ParameterValidatingConsumerConnection.run(ParameterValidatingConsumerConnection.java:54)
      at org.gradle.tooling.internal.consumer.DefaultBuildActionExecuter$1.run(DefaultBuildActionExecuter.java:76)
      at org.gradle.tooling.internal.consumer.connection.LazyConsumerActionExecutor.run(LazyConsumerActionExecutor.java:84)
      at org.gradle.tooling.internal.consumer.connection.CancellableConsumerActionExecutor.run(CancellableConsumerActionExecutor.java:45)
      at org.gradle.tooling.internal.consumer.connection.ProgressLoggingConsumerActionExecutor.run(ProgressLoggingConsumerActionExecutor.java:58)
      at org.gradle.tooling.internal.consumer.connection.RethrowingErrorsConsumerActionExecutor.run(RethrowingErrorsConsumerActionExecutor.java:38)
      at org.gradle.tooling.internal.consumer.async.DefaultAsyncConsumerActionExecutor$1$1.run(DefaultAsyncConsumerActionExecutor.java:55)
      at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
      at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
      ... 1 more
  Caused by: java.io.StreamCorruptedException: invalid type code: 68
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1563)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
      at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1919)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1529)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
      at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231)
      at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155)
      at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013)
      at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
      at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
      at org.gradle.tooling.internal.provider.serialization.PayloadSerializer.deserialize(PayloadSerializer.java:74)
      ... 21 more
  </code></pre>