Migration wicc6.2 project to wincc7.2

i am trying to migrate wincc6.2 project to the new wicc7.2
but i iget error message from CCMigrator

“a direct migration wincc 6.2 to wincc 7.2 is not supported.”
is there some utilities or tool ??

Have you seen this?
https://cache.industry.siemens.com/...111338/v8/44029132_wincc_upgrade_v4_v7_en.pdf

Thanks brother
i have read this pdf book but o don’t know from where i found the solution could you please help me because iam new in HMI .