neo4j-shell“连接拒绝”错误

Neo4j正在运行,Web控制台正常运行.但是当我尝试通过Neo4j-shell连接时,它失败了.周三一切都很好,但在尝试Postgres安装(MusicBrainz Neo4j项目的一部分)之后出现了这个问题：

sneedham-pd:neo4j-community-2.0.0-M06 username$**bin/neo4j start**
Using additional JVM arguments:  -server -XX:+DisableExplicitGC -Dorg.neo4j.server.properties=conf/neo4j-server.properties -Djava.util.logging.config.file=conf/logging.properties -Dlog4j.configuration=file:conf/log4j.properties -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled
Starting Neo4j Server...WARNING: not changing user
process [694]... waiting for server to be ready..... OK.
http://localhost:7474/ is ready.

sneedham-pd:neo4j-community-2.0.0-M06 username$**bin/neo4j-shell -v**
ERROR (-v for expanded information):
    Connection refused
java.rmi.ConnectException: Connection refused to host: 172.16.31.31; nested exception is: 
    java.net.ConnectException: Connection refused
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)
    at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
    at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:128)
    at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:194)
    at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:148)
    at com.sun.proxy.$Proxy1.welcome(Unknown Source)
    at org.neo4j.shell.impl.AbstractClient.sayHi(AbstractClient.java:206)
    at org.neo4j.shell.impl.RemoteClient.findRemoteServer(RemoteClient.java:63)
    at org.neo4j.shell.impl.RemoteClient.<init>(RemoteClient.java:55)
    at org.neo4j.shell.impl.RemoteClient.<init>(RemoteClient.java:43)
    at org.neo4j.shell.ShellLobby.newClient(ShellLobby.java:165)
    at org.neo4j.shell.StartClient.startRemote(StartClient.java:289)
    at org.neo4j.shell.StartClient.start(StartClient.java:167)
    at org.neo4j.shell.StartClient.main(StartClient.java:119)
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
    at java.net.Socket.connect(Socket.java:579)
    at java.net.Socket.connect(Socket.java:528)
    at java.net.Socket.<init>(Socket.java:425)
    at java.net.Socket.<init>(Socket.java:208)
    at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
    at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146)
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
    ... 14 more

 -host      Domain name or IP of host to connect to (default: localhost)
 -port      Port of host to connect to (default: 1337)
 -name      RMI name,i.e. rmi://<host>:<port>/<name> (default: shell)
 -pid       Process ID to connect to
 -c         Command line to execute. After executing it the shell exits
 -file      File containing commands to execute. After executing it the shell exits
 -readonly  Connect in readonly mode
 -path      Points to a neo4j db path so that a local server can be started there
 -config    Points to a config file when starting a local server

Example arguments for remote:
    -port 1337
    -host 192.168.1.234 -port 1337 -name shell
    -host localhost -readonly
    ...or no arguments for default values
Example arguments for local:
    -path /path/to/db
    -path /path/to/db -config /path/to/neo4j.config
    -path /path/to/db -readonly