Welcome to the Code Crew community.
When you installed the pods did you update the local pods data? You can do that by using the command
pod update rather than
pod update makes sure that all the local pods stored on your machine are the latest version.
Thanks for your prompt reply, I have tried update command, but unfortunately same error coming.
I am using Xcode 9.2 version.
What version of macOS have you got and what model and year of manufacture is your Mac?
You should be able to instal Catalina (10.15) on your machine according to this chart:
and then instal Xcode 11.7
Also btw, next time don’t post your serial code of your Mac. That should be kept private
Thanks , but couldn’t manage to install Catalina