Cocoapods: Unable to find a specification for `Firebase/Core`

Question

I have this in podfile:

pod \'Firebase/Core\'
pod \'Firebase/Messaging\'

but getting this error:

[!] Unable to find

Answer 1

had the same problem.

what really worked for me was gem uninstall cocoapods where I found that I had 11 (!) cocoapods versions. I chose to uninstall all and then gem install cocoapods:1.4.0

All good now.