Quartus Prime Pro Error while following Intel FPGA P-Tile Avalon streaming IP for PCI Express Design Example User Guide

Hi, I am unable to attache the file here; but steps are easy to reproduce.

1. open quartus prime pro 20.1 in widows 10.
2. start new project and select 1SD280PT2F55E2VGS1 device.
3. From IP catalog choose Intel P-tile avalon-ST for PCI express.
4. once platform designer opens IP configuration GUI; In example design tab, choose Stratix 10 DX Ptile development kit. (keep all settings to default and ) click on Generate HDL.
5. Once Generate HDL is finished successfully; click on generate example design.
6. this is where it fails.