I get the same error with a very simple import: try     import org.apache.commons.io     direct_nifi = True except ImportError:     direct_nifi = False nifi-app.log 2022-11-22 14:11:52,536 INFO [pool-7-thread-1] o.a.n.c.r.WriteAheadFlowFileRepository Initiating checkpoint of FlowFile Repository 2022-11-22 14:11:52,537 INFO [pool-7-thread-1] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 0 records in 0 milliseconds 2022-11-22 14:11:55,817 INFO [NiFi Web Server-137] o.a.n.c.s.StandardProcessScheduler Running once ExecuteScript[id=a00fd11d-0184-1000-fa55-6eabbd1be8fe] 2022-11-22 14:11:55,817 INFO [NiFi Web Server-137] o.a.n.controller.StandardProcessorNode Starting ExecuteScript[id=a00fd11d-0184-1000-fa55-6eabbd1be8fe] 2022-11-22 14:11:56,119 INFO [Flow Service Tasks Thread-2] o.a.nifi.controller.StandardFlowService Saved flow controller org.apache.nifi.controller.FlowController@6eea35ff // Another save pending = false 2022-11-22 14:11:56,765 ERROR [Timer-Driven Process Thread-5] o.a.nifi.processors.script.ExecuteScript ExecuteScript[id=a00fd11d-0184-1000-fa55-6eabbd1be8fe] Failed to properly initialize Processor. If still scheduled to run, NiFi will attempt to initialize and run the Processor again after the 'Administrative Yield Duration' has elapsed. Failure is due to org.apache.nifi.processor.exception.ProcessException: Could not instantiate script engines org.apache.nifi.processor.exception.ProcessException: Could not instantiate script engines at org.apache.nifi.script.ScriptingComponentHelper.setupScriptRunners(ScriptingComponentHelper.java:256) at org.apache.nifi.script.ScriptingComponentHelper.setupScriptRunners(ScriptingComponentHelper.java:211) at org.apache.nifi.processors.script.ExecuteScript.setup(ExecuteScript.java:178) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:145) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:133) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:78) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotation(ReflectionUtils.java:55) at org.apache.nifi.controller.StandardProcessorNode.lambda$initiateStart$8(StandardProcessorNode.java:1733) at org.apache.nifi.engine.FlowEngine$3.call(FlowEngine.java:123) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:833) Caused by: javax.script.ScriptException: SyntaxError: mismatched input '\r\n' expecting COLON in <script> at line number 23 at column number 3 at org.python.jsr223.PyScriptEngine.scriptException(PyScriptEngine.java:213) at org.python.jsr223.PyScriptEngine.compileScript(PyScriptEngine.java:93) at org.python.jsr223.PyScriptEngine.compile(PyScriptEngine.java:76) at org.apache.nifi.script.impl.JythonScriptRunner.<init>(JythonScriptRunner.java:42) at org.apache.nifi.script.ScriptRunnerFactory.createScriptRunner(ScriptRunnerFactory.java:56) at org.apache.nifi.script.ScriptingComponentHelper.setupScriptRunners(ScriptingComponentHelper.java:250) ... 17 common frames omitted Caused by: org.python.core.PySyntaxError: SyntaxError: mismatched input '\r\n' expecting COLON (<script>, line 23) at org.python.core.ParserFacade.fixParseError(ParserFacade.java:95) at org.python.core.ParserFacade.parseExpressionOrModule(ParserFacade.java:136) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:321) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:317) at org.python.util.PythonInterpreter.compile(PythonInterpreter.java:309) at org.python.jsr223.PyScriptEngine.compileScript(PyScriptEngine.java:87) ... 21 common frames omitted ... View more