我下载了Corda v4的示例程序。 （git clone https://github.com/corda/samples）
然后我在Intellij中打开程序，按照教程操作，选择“运行示例CorDapp-Kotlin”并运行它。
结果，输出了以下异常消息。
即使从浏览器访问“ localhost：10007”，也不会显示该屏幕。
请告诉我解决方法。
[INFO] 16:01:23,569 [driver-pool-thread-0] internal.DriverDSLImpl. - Exception while connecting to RPC, retrying to connect at localhost:10005
net.corda.client.rpc.RPCException: Cannot connect to server(s). Tried with all available servers.
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:218) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:93) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:32) ~[corda-rpc-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:193) ~[corda-core-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:183) ~[corda-core-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient.start(RPCClient.kt:72) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:392) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:375) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:344) ~[corda-rpc-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:170) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:79) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.InternalTestUtilsKt$poll$task$1.run(InternalTestUtils.kt:206) ~[corda-node-driver-4.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_211]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_211]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]
Caused by: org.apache.activemq.artemis.api.core.ActiveMQNotConnectedException: AMQ119007: Cannot connect to server(s). Tried with all available servers.
at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:797) ~[artemis-core-client-2.6.2.jar:2.6.2]
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:216) ~[corda-rpc-4.0.jar:?]
... 18 more
[INFO] 16:01:23,590 [driver-pool-thread-1] internal.RPCClient. - Failed Startup took 68 msec
[INFO] 16:01:23,590 [driver-pool-thread-1] internal.DriverDSLImpl. - Exception while connecting to RPC, retrying to connect at localhost:10013
net.corda.client.rpc.RPCException: Cannot connect to server(s). Tried with all available servers.
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:218) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:93) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:32) ~[corda-rpc-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:193) ~[corda-core-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:183) ~[corda-core-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient.start(RPCClient.kt:72) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:392) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:375) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:344) ~[corda-rpc-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:170) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:79) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.InternalTestUtilsKt$poll$task$1.run(InternalTestUtils.kt:206) ~[corda-node-driver-4.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_211]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_211]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]
Caused by: org.apache.activemq.artemis.api.core.ActiveMQNotConnectedException: AMQ119007: Cannot connect to server(s). Tried with all available servers.
at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:797) ~[artemis-core-client-2.6.2.jar:2.6.2]
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:216) ~[corda-rpc-4.0.jar:?]
... 18 more
[INFO] 16:01:24,007 [driver-pool-thread-0] internal.RPCClient. - Failed Startup took 3 msec
[INFO] 16:01:24,007 [driver-pool-thread-0] internal.DriverDSLImpl. - Exception while connecting to RPC, retrying to connect at localhost:10009
net.corda.client.rpc.RPCException: Cannot connect to server(s). Tried with all available servers.
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:218) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:93) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:32) ~[corda-rpc-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:193) ~[corda-core-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:183) ~[corda-core-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient.start(RPCClient.kt:72) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:392) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:375) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:344) ~[corda-rpc-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:170) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:79) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.InternalTestUtilsKt$poll$task$1.run(InternalTestUtils.kt:206) ~[corda-node-driver-4.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_211]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_211]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]
Caused by: org.apache.activemq.artemis.api.core.ActiveMQNotConnectedException: AMQ119007: Cannot connect to server(s). Tried with all available servers.
at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:797) ~[artemis-core-client-2.6.2.jar:2.6.2]
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:216) ~[corda-rpc-4.0.jar:?]
... 18 more
[INFO] 16:01:24,077 [driver-pool-thread-1] internal.RPCClient. - Failed Startup took 3 msec
[INFO] 16:01:24,077 [driver-pool-thread-1] internal.DriverDSLImpl. - Exception while connecting to RPC, retrying to connect at localhost:10005
net.corda.client.rpc.RPCException: Cannot connect to server(s). Tried with all available servers.
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:218) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:93) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:32) ~[corda-rpc-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:193) ~[corda-core-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:183) ~[corda-core-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient.start(RPCClient.kt:72) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:392) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:375) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:344) ~[corda-rpc-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:170) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:79) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.InternalTestUtilsKt$poll$task$1.run(InternalTestUtils.kt:206) ~[corda-node-driver-4.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_211]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_211]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]
Caused by: org.apache.activemq.artemis.api.core.ActiveMQNotConnectedException: AMQ119007: Cannot connect to server(s). Tried with all available servers.
at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:797) ~[artemis-core-client-2.6.2.jar:2.6.2]
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:216) ~[corda-rpc-4.0.jar:?]
... 18 more
[INFO] 16:01:24,114 [driver-pool-thread-0] internal.RPCClient. - Failed Startup took 5 msec
[INFO] 16:01:24,114 [driver-pool-thread-0] internal.DriverDSLImpl. - Exception while connecting to RPC, retrying to connect at localhost:10013
net.corda.client.rpc.RPCException: Cannot connect to server(s). Tried with all available servers.
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:218) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:93) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:32) ~[corda-rpc-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:193) ~[corda-core-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:183) ~[corda-core-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient.start(RPCClient.kt:72) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:392) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:375) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:344) ~[corda-rpc-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:170) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:79) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.InternalTestUtilsKt$poll$task$1.run(InternalTestUtils.kt:206) ~[corda-node-driver-4.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_211]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_211]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]
Caused by: org.apache.activemq.artemis.api.core.ActiveMQNotConnectedException: AMQ119007: Cannot connect to server(s). Tried with all available servers.
at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:797) ~[artemis-core-client-2.6.2.jar:2.6.2]
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:216) ~[corda-rpc-4.0.jar:?]
... 18 more
[INFO] 16:01:24,510 [driver-pool-thread-1] internal.RPCClient. - Failed Startup took 2 msec
[INFO] 16:01:24,510 [driver-pool-thread-1] internal.DriverDSLImpl. - Exception while connecting to RPC, retrying to connect at localhost:10009
net.corda.client.rpc.RPCException: Cannot connect to server(s). Tried with all available servers.
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:218) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:93) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:32) ~[corda-rpc-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:193) ~[corda-core-4.0.jar:?]
at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:183) ~[corda-core-4.0.jar:?]
at net.corda.client.rpc.internal.RPCClient.start(RPCClient.kt:72) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:392) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:375) ~[corda-rpc-4.0.jar:?]
at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:344) ~[corda-rpc-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:170) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:79) ~[corda-node-driver-4.0.jar:?]
at net.corda.testing.node.internal.InternalTestUtilsKt$poll$task$1.run(InternalTestUtils.kt:206) ~[corda-node-driver-4.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_211]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_211]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_211]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_211]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]
Caused by: org.apache.activemq.artemis.api.core.ActiveMQNotConnectedException: AMQ119007: Cannot connect to server(s). Tried with all available servers.
at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:797) ~[artemis-core-client-2.6.2.jar:2.6.2]
at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:216) ~[corda-rpc-4.0.jar:?]
... 18 more
[INFO] 16:01:27,311 [driver-pool-thread-0] internal.RPCClient. - Startup took 2697 msec
[INFO] 16:01:27,513 [driver-pool-thread-1] internal.RPCClient. - Startup took 2933 msec
[INFO] 16:01:27,798 [driver-pool-thread-0] internal.RPCClient. - Startup took 487 msec
[INFO] 16:01:27,886 [driver-pool-thread-1] internal.DriverDSLImpl. - Node handle is ready. NodeInfo: NodeInfo(addresses=[localhost:10004], legalIdentitiesAndCerts=[O=PartyA, L=London, C=GB], platformVersion=4, serial=1555570880870), WebAddress: localhost:10007
[INFO] 16:01:27,943 [driver-pool-thread-1] internal.DriverDSLImpl. - Node handle is ready. NodeInfo: NodeInfo(addresses=[localhost:10012], legalIdentitiesAndCerts=[O=PartyC, L=Paris, C=FR], platformVersion=4, serial=1555570880677), WebAddress: localhost:10015
[INFO] 16:01:27,965 [driver-pool-thread-1] internal.DriverDSLImpl. - Node handle is ready. NodeInfo: NodeInfo(addresses=[localhost:10008], legalIdentitiesAndCerts=[O=PartyB, L=New York, C=US], platformVersion=4, serial=1555570880854), WebAddress: localhost:10011