Cause of the message

If the time information variable of the variable to be predicted specified in the time series prediction mode contains duplicate time stamps, a model for time series prediction cannot be created. This error can occur if more than 200 series exist in the prediction series.

Solution

Check for duplicates in the time information variable of the variable you want to predict in the prediction model creation (training) data, and delete the duplicate data. If you get this error when predicting multiple series, make sure that there are no more than 200 series.