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我已经安装的Neo4j通过以下步骤：在CENTOS 6.7上安装Neo4j？
cd /tmp
wget http://debian.neo4j.org/neotechnology.gpg.key
sudo rpm --import neotechnology.gpg.key
然后创建neo4j.repo文件：
[neo4j]
name=Neo4j Yum Repo
baseurl=http://yum.neo4j.org
enabled=1
gpgcheck=1
招入：
sudo cp neo4j.repo /etc/yum.repos.d/
最后运行命令安装的Neo4j
sudo yum install neo4j
但是，它未能开始！并给这个例外：
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component '[email protected]' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:444)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:193)