Hello. I've been following this tutorial (https://www.batchiq.com/nifi-configuring-ssl-auth.html) to the best of my ability, yet the web UI still does not want to start. I get the error message ERR_CONNECTION_REFUSED" when trying to access the nifi server through Google Chrome. It has also been this way when trying to access through Firefox, so I suppose this is more of a server error than anything else. The following is a relevant section of my conf file...   # web properties # nifi.web.war.directory=./lib #nifi.web.http.host= #nifi.web.http.port=8080 nifi.web.http.network.interface.default= nifi.web.https.host= nifi.web.https.port=8443 nifi.web.https.network.interface.default= nifi.web.jetty.working.directory=./work/jetty nifi.web.jetty.threads=200 nifi.web.max.header.size=16 KB nifi.web.proxy.context.path= nifi.web.proxy.host=     # security properties # nifi.sensitive.props.key=SyoerSecretFlyingPassword nifi.sensitive.props.key.protected=SuperSecretFlyingPassword nifi.sensitive.props.algorithm=PBEWITHMD5AND256BITAES-CBC-OPENSSL nifi.sensitive.props.provider=BC nifi.sensitive.props.additional.keys= nifi.security.keystore=server_keystore.js nifi.security.keystoreType=JKS nifi.security.keystorePasswd=SuperSecret nifi.security.keyPasswd=SuperSecret nifi.security.truststore=server_trustore.jks nifi.security.truststoreType=JKS nifi.security.truststorePasswd=SuperSecret nifi.security.user.authorizer=managed-authorizer nifi.security.user.login.identity.provider= nifi.security.ocsp.responder.url= nifi.security.ocsp.responder.certificate= And here is the part of my log where the error message shows up...   2019-10-08 09:16:31,472 INFO [main] org.apache.nifi.NiFi Launching NiFi... 2019-10-08 09:16:31,791 INFO [main] o.a.nifi.properties.NiFiPropertiesLoader Determined default nifi.properties path to be 'C:\Users\SPLASH~1\Desktop\PROGRA~1\Apache\NIFI-1~1.2-B\NIFI-1~1.2\.\conf\nifi.properties' 2019-10-08 09:16:31,791 INFO [main] o.a.nifi.properties.NiFiPropertiesLoader Loaded 149 properties from C:\Users\SPLASH~1\Desktop\PROGRA~1\Apache\NIFI-1~1.2-B\NIFI-1~1.2\.\conf\nifi.properties 2019-10-08 09:16:31,985 ERROR [main] org.apache.nifi.NiFi Failure to launch NiFi due to java.lang.IllegalArgumentException: There was an issue decrypting protected properties java.lang.IllegalArgumentException: There was an issue decrypting protected properties at org.apache.nifi.NiFi.initializeProperties(NiFi.java:337) at org.apache.nifi.NiFi.convertArgumentsToValidatedNiFiProperties(NiFi.java:305) at org.apache.nifi.NiFi.main(NiFi.java:296) Caused by: org.apache.nifi.properties.SensitivePropertyProtectionException: The provider factory cannot generate providers without a key at org.apache.nifi.properties.AESSensitivePropertyProviderFactory.getProvider(AESSensitivePropertyProviderFactory.java:40) at org.apache.nifi.properties.NiFiPropertiesLoader.getSensitivePropertyProvider(NiFiPropertiesLoader.java:190) at org.apache.nifi.properties.NiFiPropertiesLoader.load(NiFiPropertiesLoader.java:249) at org.apache.nifi.properties.NiFiPropertiesLoader.load(NiFiPropertiesLoader.java:266) at org.apache.nifi.properties.NiFiPropertiesLoader.loadDefault(NiFiPropertiesLoader.java:173) at org.apache.nifi.properties.NiFiPropertiesLoader.get(NiFiPropertiesLoader.java:284)     Could anyone please help?     ... View more