In Adobe InDesign CS6, the error "
undefined is not an object" is almost always related to a JavaScript/ExtendScript failure. It occurs when a script (either a built-in one or one you are trying to run) tries to access a property of something that doesn't exist or hasn't been defined yet.
- Check for Open Documents: Ensure you have an active document open before running any script.
- Verify Script Target: If using the ExtendScript Toolkit, change the engine to Adobe InDesign CS6.
- Try a Different File: Open a new, blank document to see if the error is specific to a single corrupted file.