@Angana Saha - I looks like you are trying to use Java 11 to run your NiFi instance. NiFi 1.8 supports Java 8. As of Java 9 the java.se aggregate module does not include the Java EE APIs. This is why you are seeing the following: org.apache.nifi.StdOut java.lang.module.FindException:Module java.xml.bind not found - I suggest installing the latest version of Java 8 and see if NiFI launches fine for you then. There is on going work to add support for Java 9 - 11 in future releases of NiFi. - Thank you, Matt ... View more