Router upgrade error

RouterOS Beginner Basics
1

Im trying to upgrade an CRS 125 from 6.43.2 to 6.43.4 and get error

20:04:41 system,error can not install wireless-fp-6.19: system-6.19 is not installed, but is required

after it reboots.

Im doing install straight from System / packages.

Any idea what could cause this?

2

Does the offending package happen to reside in the user part of NAND? If there is some stray .npk, delete it.

3

MVP right here,

Exactly the problem some old package left on the memory.

Cheers.