I believe that me and Lawrence are having the same problem.
In my case the message showed by Qlik Sense is:
The following errors occurred:
Duplicate Derived Field
The error occurred here:
DERIVE FIELDS FROM FIELDS [AGN_DT_ULTIMAATUCAD], [DT_LANCAMENTO], [DT_INICIO_OBRA], [DT_PREV_TERMINO_OBRA], [DT_PREV_ULTIMA_ENTREGA], [ORG_DT_REGISTRO], [BLO_DT_ENTREGA], [EST_DT_LANCAMENTO], [EST_DT_INICIOOBRA], [EST_DT_FIMOBRA], [UND_DATA_SITUACAO], [DATA_FECHAMENTO], [DT_VALIDADE_PROPOSTA], [CND_DT_STATUS] USING [autoCalendar]
This error occur on the auto generated load script for 7 views using a Oracle Database Connection.
i noticed that i get this message when i have different Auto-generated sections in the data load editor.
The message is the following: Duplicate Derived Field: DERIVE FIELDS FROM FIELDS [REQDATEORDER] USING [autoCalendar]
This is the second line of "Derive fields from fields" in the script. But even if i copy all the fields in one line i get the same message but them with all the fields included.
In fact today i am blocked because it seems that i cannot add more than 1 tables in my app and then unblock the script.
Thank you for your help,