dbca 启动失败

[oracle@db_01 ~]$ dbca
UnsatisfiedLinkError exception loading native library: njni10
Exception in thread "main" java.lang.UnsatisfiedLinkError: get
        at oracle.net.common.NetGetEnv.get(Native Method)
        at oracle.net.config.Config.getNetDir(Unknown Source)
        at oracle.net.config.Config.initConfig(Unknown Source)
        at oracle.net.config.Config.(Unknown Source)
        at oracle.sysman.assistants.util.NetworkUtils.(NetworkUtils.java:222)
        at oracle.sysman.assistants.util.step.StepContext.(StepContext.java:255)
        at oracle.sysman.assistants.dbca.backend.Host.(Host.java:682)
        at oracle.sysman.assistants.dbca.ui.UIHost.(UIHost.java:205)
        at oracle.sysman.assistants.dbca.ui.InteractiveHost.(InteractiveHost.java:54)
        at oracle.sysman.assistants.dbca.Dbca.getHost(Dbca.java:160)
        at oracle.sysman.assistants.dbca.Dbca.execute(Dbca.java:94)
        at oracle.sysman.assistants.dbca.Dbca.main(Dbca.java:180)