在开发时opendaylight在windows7下使用，都能正常使用，没有问题，但现在需要将opendaylight放到windows server2012 R2下运行，结果发现运行报错，寻找了很多方式，现在将解决方法分享，希望后来者不再浪费时间。
错误1：java.lang.NoClassDefFoundError: org/fusesource/leveldbjni/JniDBFactory at akka.persistence.journal.leveldb. LeveldbStore$class.leveldbFactory(LeveldbStore.scala:52)
opendaylight 启动karaf 错误信息如下：
Uncaught error from thread [opendaylight-cluster-data-akka.persistence.dispatchers.default-plugin-dispatcher-21]:
org/fusesource/leveldbjni/JniDBFactory, shuttingg down JVM since
‘akka.jvm-exit-on-fatal-error’ is enabled for for ActorSystem[opendaylight-cluster-data]
java.lang.NoClassDefFoundError: org/fusesource/leveldbjni/JniDBFactory
at akka.persistence.journal.leveldb.LeveldbStoreclass.preStart(LeveldbStore.scala:178)
at akka.persistence.journal.leveldb.LeveldbJournal.preStart(LeveldbJournal.scala:23)
at akka.actor.Actor$class.aroundPreStart(Actor.scala:510)
at akka.persistence.journal.leveldb.LeveldbJournal.aroundPreStart(LeveldbJournal.scala:23)
at akka.actor.ActorCell.create(ActorCell.scala:590)
at akka.actor.ActorCell.invokeAllWorker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
修改opendaylight目录下 etc/system.properties，在文件中加入一句org.osgi.framework.os.name = Win32，保存后再次启动
错误2：Could not load library. Reasons: [no leveldbjni64-1.8 in java.library.path, no leveldbjni-1.8 in java.library.path, F:\CI-CD\dc-karaf-0.1.0-SNAPSHOT\data\cache\org.eclipse.osgi\bundles\183\1.cp\META-INF\native\windows64\leveldbjni.dll: Can’t find dependent libraries, F:\CI-CD\dc-karaf-0.1.0-SNAPSHOT\data\tmp\leveldbjni-64-1-93968114411212963.8: Can’t find dependent libraries]
我在将错误1中的配置文件修改后，启动又报错，这次报错信息不一样了
opendaylight 启动karaf ,错误信息如下：
73% [====================================================> ]Uncaught error from thread [opendaylight-
cluster-data-akka.persistence.dispatchers.default-plugin-dispatcher-23]: Could not load library. Reasons: [no leveldbjni
64-1.8 in java.library.path, no leveldbjni-1.8 in java.library.path, F:\CI-CD\dc-karaf-0.1.0-SNAPSHOT\data\cache\org.ecl
ipse.osgi\bundles\183\1.cp\META-INF\native\windows64\leveldbjni.dll: Can’t find dependent libraries, F:\CI-CD\dc-karaf-
0.1.0-SNAPSHOT\data\tmp\leveldbjni-64-1-93968114411212963.8: Can’t find dependent libraries], shutting down JVM since ‘a
kka.jvm-exit-on-fatal-error’ is enabled for for ActorSystem[opendaylight-cluster-data]
java.lang.UnsatisfiedLinkError: Could not load library. Reasons: [no leveldbjni64-1.8 in java.library.path, no leveldbjn
i-1.8 in java.library.path, F:\CI-CD\dc-karaf-0.1.0-SNAPSHOT\data\cache\org.eclipse.osgi\bundles\183\1.cp\META-INF\nati
ve\windows64\leveldbjni.dll: Can’t find dependent libraries, F:\CI-CD\dc-karaf-0.1.0-SNAPSHOT\data\tmp\leveldbjni-64-1-9
3968114411212963.8: Can’t find dependent libraries]
at org.fusesource.hawtjni.runtime.Library.doLoad(Library.java:187)
at org.fusesource.hawtjni.runtime.Library.load(Library.java:143)
at org.fusesource.leveldbjni.JniDBFactory.(JniDBFactory.java:48)
at akka.persistence.journal.leveldb.LeveldbStoreclass.preStart(LeveldbStore.scala:178)
at akka.persistence.journal.leveldb.LeveldbJournal.preStart(LeveldbJournal.scala:23)
at akka.actor.Actor$class.aroundPreStart(Actor.scala:510)
at akka.persistence.journal.leveldb.LeveldbJournal.aroundPreStart(LeveldbJournal.scala:23)
at akka.actor.ActorCell.create(ActorCell.scala:590)
at akka.actor.ActorCell.invokeAllWorker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
出现这个错误是找不到依赖，是因为在运行时用到了dll外部文件，而系统中没有可以解析运行这文件的环境。想要了解详细信息的可以看system\org\fusesource\leveldbjni\leveldbjni-all目录下的jar包详细信息，入口是JniDBFactory 类的open()方法，在static中 NativeDB.LIBRARY.load();进行了加载dll
解决办法，在windows server2012中安装Mircrosoft Visual C++软件，这个版本不同也会运行不起，我试了很多个版本，最后如下2010版本下，karaf运行成功。我的opendaylight版本是Carbon-SR4。因为这个版本不好找，这里提供百度网盘下载地址
链接：https://pan.baidu.com/s/15A-9yjB7uzb0kuhsCwqY_g
提取码：s52c
安装成功后，再次启动karaf，成功
两个错误是独立的，之前另一台机器启动只报了错误2，按照方法解决后成功启动，对应错误修改对应配置就可以了，不用两个都修改