Arquivo `'NBPhoneNumberDesc.h' não encontrado` após atualizar para o Xcode 10.2, Swift 5

Estou usando pod chronotruck / FlagPhoneNumber Eu só atualizou a partir High Sierra/Xcode 10.1/Swift 4.2/Cocoapoods v-1.5.3de Mojave 10.14.15/Xcode 10.2.1/Swift 5/Cocoapoods v-1.7.3e eu não posso construir porque dentro do NBRegExMatcher.marquivo eu recebo o erro

Arquivo 'NBPhoneNumberDesc.h' não encontrado

Tudo funcionava bem antes da atualização e nunca tive nenhum desses erros.

O Podfile.lock contém o seguinte:

- FlagPhoneNumber (0.7.6):
- FlagPhoneNumber/libPhoneNumberiOS (= 0.7.6)
- FlagPhoneNumber/libPhoneNumberiOS (0.7.6)

O curioso é que há vários outros arquivos desse pod que também usam o #import "NBPhoneNumberDesc.h"módulo, mas todos funcionam bem e não há erros

Tentei esta resposta, mas NBPhoneNumberDesc.h já estava na seção Pública:

I also tried this answer to set the SWIFT_OBJC_INTERFACE_HEADER_NAME to match the my project's bridging header but nothing

Inside the NBRegExMatcher.m file (where the error is occurring) I commented out #import NBPhoneNumberDesc.h to see what would happen and then NBPhoneNumberUtil.h got the same error:

I notice the libPhoneNumber-iOS came bundled inside the FlagPhoneNumber pod and it's version is libPhoneNumberiOS (0.7.6). I then manually added the pod to my project to see what would happen but it also made no difference, the error was still there. The only thing I noticed is when I added the pod manually the Podfile.lock version is - libPhoneNumber-iOS (0.9.15) wherein as the version that FlagPhoneNumber is using is libPhoneNumberiOS (0.7.6)

Any idea how can i fix this error?