启动报异常错误：Could not get JVM parameters and dynamic configurations properly.
[ERROR] Raw output from BashJavaUtilsj解决方法：

./start-cluster.sh
Starting cluster.
[ERROR] The execution result is empty.
[ERROR] Could not get JVM parameters and dynamic configurations properly.
[ERROR]
Raw output from BashJavaUtils: Exception in thread “main” java.lang.UnsupportedClassVersionError: org/apache/flink/runtime/util/bash/BashJavaUtils has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)atjava.security.AccessController.doPrivileged(NativeMethod)atjava.net.URLClassLoader.findClass(URLClassLoader.java:362)atjava.lang.ClassLoader.loadClass(ClassLoader.java:418)atsun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:371)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:642)

原因分析：JAVA_HOME配置了，执行java -version生效了，但是flink 环境加载不到，需要配置 java. home指定jdk安装目录。如下：