Endpoint IOC Error

[miczs]

Hi Everyone -

Good day! I am new with CSE and part of my task is to upload IOCs using XML files from CISO. I got an error when I uploaded the file from CISO.

The Endpoint IOC is not currently able to be validated according to the Cisco IOC specifiation.

• 31:0: ERROR: Element '{http://stix.mitre.org/stix-1}STIX_Package': No matching global declaration available for the validation root.

The same file worked on Tanium and to our SIEM. 

Thanks in advance. I've attached the file but converted it to pdf as xml is not supported as document here.