> For the complete documentation index, see [llms.txt](https://tgiann.gitbook.io/tgiann/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tgiann.gitbook.io/tgiann/common-errors/script-error-1-attempt-to-call-a-nil-value.md).

# SCRIPT ERROR: ?:-1: attempt to call a nil value

**Script Error:**\
`?:-1: attempt to call a nil value (field 'ExampleFunctionName')`

This error typically occurs in the **tgiann-core** script. The root cause is using an outdated version of the **tgiann-core** script. Updating it to the latest version should resolve the issue.