This issue occures due to Java version you set on JAVA_HOME environment variable.
OLD JAVA path :/usr/lib/jvm/java-1.11.0-openjdk-amd64
Solution : Set JAVA_HOME to /usr/lib/jvm/java-8-openjdk-amd64
It will work!!!
Note my Error was:
File "/home/tms/myInstallDir/spark-2.4.5-bin-hadoop2.7/python/pyspark/rdd.py", line 816, in collect sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd()) File "/home/tms/myInstallDir/spark-2.4.5-bin-hadoop2.7/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py", line 1257, in call File "/home/tms/myInstallDir/spark-2.4.5-bin-hadoop2.7/python/pyspark/sql/utils.py", line 79, in deco raise IllegalArgumentException(s.split(': ', 1)[1], stackTrace)pyspark.sql.utils.IllegalArgumentException: u'Unsupported class file major version 55'
