error

[chenlin119]

I encountered the following error when running the report：
Exception in thread "Thread-22" org.sikuli.script.SikuliXception: Cannot initialize Script runner Jython
at org.sikuli.script.runners.AbstractScriptRunner.init(AbstractScriptRunner.java:78)
at org.sikuli.ide.EditorPane$2.run(EditorPane.java:360)
Caused by: java.lang.NullPointerException: Cannot invoke "org.python.util.PythonInterpreter.exec(String)" because "org.sikuli.script.runnerSupport.JythonSupport.interpreter" is null
at org.sikuli.script.runnerSupport.JythonSupport.interpreterExecString(JythonSupport.java:306)
at org.sikuli.script.runners.JythonRunner.doInit(JythonRunner.java:94)
at org.sikuli.script.runners.AbstractScriptRunner.init(AbstractScriptRunner.java:70)
... 1 more
[error] Jython: reflection problem: java.lang.IllegalArgumentException: java.lang.IllegalArgumentException: Cannot create PyString with non-byte value
null/null/null

[julienmerconsulting]

SikuliX is actively maintained again

Hi @chenlin119,

We need more context to help you. Please provide:

• OS (Windows / macOS / Linux) and version
• Java version (java -version output)
• How you launched SikuliX (double-click, command line, IDE integration)
• Full console output if launched from command line with java -jar sikulixide.jar -v

In the meantime

This error is typically caused by one of the following:

Cause	Fix
Java 8 on Windows 11	Upgrade to Java 17 (Temurin recommended)
Corrupted SikuliX app data	Delete %APPDATA%\Sikulix (Windows) or ~/Library/Application Support/Sikulix (macOS) and restart
Classpath conflict with another Jython	Make sure no other jython.jar is on your classpath

Please try Java 17 first — it solves most Jython initialization issues on recent OS versions.

---

Waiting for your environment details before further investigation.