Error: A JNI error has occurred, please check your installation and try again

error description¶

The error appears after installing zookeeper and flume, hbase cannot be started, the error message is as follows:

Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/zookeeper/KeeperException
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
        at java.lang.Class.getMethod0(Class.java:3018)
        at java.lang.Class.getMethod(Class.java:1784)
        at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:650)
        at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:632)
Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.KeeperException

solution¶

1. Some suggest to check /etc/profile
2. Som suggest to recompile
3. I finally solved the problem by downloading two jar packages (zookeeper-3.7.0.jar, zookeeper-jute-3.7.0.jar), and pasting them into /usr/local/hbase/lib. go to the maven library to download.