>If you use the latest revision of SAP HANA, SHINE is pre-installed and you do not need to reinstall it.
That is absolutely not a true statement. SHINE is non-automatic content and must be installed on standard HANA systems. It is only pre-installed on the HANA Developer Edition.
> I've again deleted what has been existed so far and tried to import the model four times.
It sounds like you originally installed the SP8 version of SHINE on your SP7 system - which likely wouldn't work. When you say you deleted - how? Via the HALM tool? Are you sure you are completely removing the newer version of the Delivery Unit?
>But still I get the message "Completed with errors".
Where are you getting this message? From the DU import or during the Data Generator run?