Did this project support GPL2019

[aogrcs]

Hi, I'm fresh in Ada but I'm interested in it and embedded software for UAV.
I used GPL 2019 and arm-elf-2019 to build it, there were warnings:

s-textio.adb:41:15: warning: no entities of "System.BB.Parameters" are referenced
s-textio.adb:53:07: warning: use clause for package "Parameters" has no effect
s-textio.adb:53:20: warning: "Parameters" is already use-visible through previous use_clause at line 41

How can I modify it to fit for GPL 2019? Thanks