[Question]: After running the program, it reported an error, ERROR: ‘Invoke:WholePianosSleep’, what is the reason?

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### Describe your problem

May I ask why there is an error reported, as shown in the screenshot.

ERROR: 'Invoke:WholePianosSleep'



No files, tests, or entry points are named; begin by reviewing the supplied screenshots and tracing where the reported error is emitted. Done means identifying the cause of “Invoke:WholePianosSleep” and documenting a reproducible resolution.

Written by the indexing model from the issue text.