MQTT Modular Input does not start. Error Message is: Introspecting scheme=mqtt: script running failed (exited with code 1) Unable to initialize modular input "mqtt" defined inside the app "mqtt_ta": Introspecting scheme=mqtt: script running failed (exited with code 1) I changed mqtt.py to log the Java call (see below). When I start it from a command line, the error appears (not belonging to Java): ERROR Incorrect Program Usage Nothing else. Any idea? C:\Tools\jdk-12.0.1\bin\java -classpath C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\commons-codec-1.9.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\commons-logging-1.2.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\httpasyncclient-4.1.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\httpasyncclient-cache-4.1.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\httpclient-4.4.1.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\httpclient-cache-4.4.1.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\httpcore-4.4.1.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\httpcore-nio-4.4.1.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\json.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\log4j-1.2.16.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\mqtt-client-0.4.0.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\mqttmodinput.jar;C:\Tools\Splunk\etc\apps\mqtt_ta\bin\lib\splunk_tlsv12.jar; -Xms64m -Xmx64m -Dsplunk.securetransport.protocol=tls com.splunk.modinput.mqtt.MQTTModularInput ... View more