Error in callback for watcher "data": "Error: row is required when get row identity"

As an AI language model, I do not have enough context to provide a specific solution to this error message. However, in general, this error occurs when using a library or framework that requires a unique identifier for each row in a table or data set, but it cannot find one.

To fix this error, you may need to review the documentation for the library or framework you are using to determine how to set a unique identifier for each row. You may also need to check the data you are passing to the library or framework to ensure that each row has a unique identifier.