while copying project from Jira prod(v 7.5.2) to staging(v 7.9.1)

[ashok 1234]

while copying project from Jira prod(v 7.5.2) to staging(v 7.9.1)

Getting below error:

This data appears to be from an older version of JIRA. Please upgrade the data and try again. The current version of JIRA is at build number '79001', but the supplied backup file was for build number '75007'.

TIA..

[Nic Brough -Adaptavist-]

Yes, that's correct.  The source and target systems need to be on the same version for project import to work.