Help! error dtb generate(dts memory section: No memory nodes specified. Blindly adding them all)

Hello guys,

I 've got a problem when I try to generate my device tree.
I do as per below:
sopc2dts --input soc_system.sopcinfo
–output soc_system.dtb --type dtb
–board soc_system_board_info.xml
–board hps_common_board_info.xml
–clocks

When I run this, next message is generated:
hps_common_board_info.xml (No such file or directory)
Exception occurred: use -v for more information
dts memory section: No memory nodes specified. Blindly adding them all

Why?? What can I do?? I need solve this matter…

Thank you all.