This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Your schema says that the <ROEList> element may contain exactly one <ROEInfo> child element.
This happens because the default value of maxOccurs is one and you have only specified minOccurs=1 here: