Gradle 1.3 rc-1 connection failure.

stacktrace.log

Failed to load Gradle project: single1
org.gradle.tooling.GradleConnectionException: Could not fetch model of type 'IdeaProject' using Gradle installation 'C:\Program Files\Gradle\gradle-1.3-rc-1'.
	at org.gradle.tooling.internal.consumer.ResultHandlerAdapter.onFailure(ResultHandlerAdapter.java:55)
	at org.gradle.tooling.internal.consumer.async.DefaultAsyncConnection$3.run(DefaultAsyncConnection.java:81)
	at org.gradle.messaging.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:66)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.RuntimeException: Could not connect to server [bcda3279-d354-4c2e-ba17-f51be0cb45d2 port:7072, addresses:[/127.0.0.1, /0:0:0:0:0:0:0:1]]. Tried addresses: [/127.0.0.1, /0:0:0:0:0:0:0:1].
	at org.gradle.messaging.remote.internal.inet.TcpOutgoingConnector.connect(TcpOutgoingConnector.java:77)
	at org.gradle.launcher.daemon.client.DefaultDaemonConnector.connectToDaemon(DefaultDaemonConnector.java:148)
	at org.gradle.launcher.daemon.client.DefaultDaemonConnector.findConnection(DefaultDaemonConnector.java:86)
	at org.gradle.launcher.daemon.client.DefaultDaemonConnector.connect(DefaultDaemonConnector.java:68)
	at org.gradle.launcher.daemon.client.DaemonClient.execute(DaemonClient.java:147)
	at org.gradle.launcher.daemon.client.DaemonClient.execute(DaemonClient.java:72)
	at org.gradle.tooling.internal.provider.DaemonGradleLauncherActionExecuter.execute(DaemonGradleLauncherActionExecuter.java:43)
	at org.gradle.tooling.internal.provider.DaemonGradleLauncherActionExecuter.execute(DaemonGradleLauncherActionExecuter.java:30)
	at org.gradle.tooling.internal.provider.LoggingBridgingGradleLauncherActionExecuter.execute(LoggingBridgingGradleLauncherActionExecuter.java:53)
	at org.gradle.tooling.internal.provider.LoggingBridgingGradleLauncherActionExecuter.execute(LoggingBridgingGradleLauncherActionExecuter.java:30)
	at org.gradle.tooling.internal.provider.DefaultConnection.run(DefaultConnection.java:139)
	at org.gradle.tooling.internal.provider.DefaultConnection.run(DefaultConnection.java:129)
	at org.gradle.tooling.internal.provider.DefaultConnection.getTheModel(DefaultConnection.java:99)
	at org.gradle.tooling.internal.consumer.connection.AdaptedConnection.getModel(AdaptedConnection.java:53)
	at org.gradle.tooling.internal.consumer.ModelProvider.provide(ModelProvider.java:57)
	at org.gradle.tooling.internal.consumer.connection.LazyConnection$2.run(LazyConnection.java:111)
	at org.gradle.tooling.internal.consumer.connection.LazyConnection.withConnection(LazyConnection.java:119)
	at org.gradle.tooling.internal.consumer.connection.LazyConnection.getModel(LazyConnection.java:108)
	at org.gradle.tooling.internal.consumer.connection.ProgressLoggingConnection$2.run(ProgressLoggingConnection.java:67)
	at org.gradle.tooling.internal.consumer.connection.ProgressLoggingConnection.run(ProgressLoggingConnection.java:81)
	at org.gradle.tooling.internal.consumer.connection.ProgressLoggingConnection.getModel(ProgressLoggingConnection.java:65)
	at org.gradle.tooling.internal.consumer.connection.LoggingInitializerConnection.getModel(LoggingInitializerConnection.java:53)
	at org.gradle.tooling.internal.consumer.async.DefaultAsyncConnection$2.run(DefaultAsyncConnection.java:61)
	at org.gradle.tooling.internal.consumer.async.DefaultAsyncConnection$3.run(DefaultAsyncConnection.java:79)
	... 4 more
Caused by: java.lang.RuntimeException: Could not connect to address /0:0:0:0:0:0:0:1.
	at org.gradle.messaging.remote.internal.inet.TcpOutgoingConnector.connect(TcpOutgoingConnector.java:66)
	... 27 more
Caused by: java.net.SocketException: Address family not supported by protocol family: connect
	at sun.nio.ch.Net.connect(Native Method)
	at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:500)
	at java.nio.channels.SocketChannel.open(SocketChannel.java:146)
	at org.gradle.messaging.remote.internal.inet.TcpOutgoingConnector.connect(TcpOutgoingConnector.java:59)
	... 27 more