Error: Could not find or load main class org.apache.flume.tools.GetJavaProperty

执行命令：
./flume-ng version 

报错：
Error: Could not find or load main class org.apache.flume.tools.GetJavaProperty
Error: Could not find or load main class org.apache.flume.tools.GetJavaProperty

Error: Could not find or load main class org.apache.flume.tools.VersionInfo

找了好久没找到原因，后来无意中发现，原来是环境变量FLUME_HOME配错了：
export FLUME_HOME=apache-flume-1.6.0-cdh5.14.0-bin

export PATH=$FLUME_HOME/bin:$PATH
我的flume在 /mnt/app/中，所以正确路径应该是
export FLUME_HOME=/mnt/app/apache-flume-1.6.0-cdh5.14.0-bin

export PATH=$FLUME_HOME/bin:$PATH
修改之后，别忘了source 一下,让环境变量生效哦！