App with deprecated Python

[wines]

After upgrading Splunk from 8 to 9 version I've started to receive messages :

" The Upgrade Readiness App detected 1 app with deprecated Python: splunk-rolling-upgrade "

Can't find this app Splunkbase | apps.

As far as I understand it's Splunk buit-in app?

Should I delete it or how can I resolve this issue ?

P"lease help.

[wines]

I've downloaded latest Splunk installation package, extracted app files and replaced old files in my installation. But it does not hepl.

[dural_yyz]

Compare the contents of the "splunk/etc/apps/splunk-rolling-upgrade" against the manifest file.  Some previous files may be left behind after the upgrade and triggering the python 2 warning.  If any have the same name you may need to manually copy from the v9 Splunk extracted to a safe location.

[sir_swade]

I am getting the same error as the original post and tried your suggestions.  I am still getting an email alert with this error.  My Splunk search has only has Python 3.9.18 installed.  Any other suggestions to fix this error?