Firebase-ios-sdk: GoogleDataTransport build errors in Xcode 12.0 GM for file nanopb-umbrella.h

[demo84]

[REQUIRED] Step 1: Describe your environment

• Xcode version: __12.0___
• Firebase SDK version: __6.32.2___
• Firebase Component: ___Nanopb__ (Auth, Core, Database, Firestore, Messaging, Storage, etc)
• Component version: __1.30906.0___
• Installation method: CocoaPods (select one)

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

What happened? How can we make the problem occur?
Xcode project fails to build in v12.0. multiple build errors for file nanopb-umbrella.h

Error on all of the imports. for example for the line

import "pb.h"

the error shows as
'Double-quoted include "pb.h" in framework header, expected angle-bracketed instead'

If you have a downloadable sample project that reproduces the bug you're reporting, you will
likely receive a faster response on your issue.

Relevant Code:

// TODO(you): code here to reproduce the problem

[mattiosdev]

Same issue. Removed pod 'Firebase/Analytics' for now.

[ryanwilson]

Hey @demo84 and @mattiosdev - sorry for the troubles you're seeing.

I'm unable to reproduce this using the Analytics quickstart with the Xcode GM (I tested both the 12A7208 and 12A7209 versions just to be sure). Are either of you able to provide a sample project with this issue happening, or able to reproduce it in the quickstarts?

A cleaning of derived data, etc may help as well.

[paulb777]

See https://stackoverflow.com/questions/63646607/xcode-12-using-firebase-pods-lexical-or-preprocessor-issue-pb-h-file-not-fou/63648164#63648164

[mattiosdev]

Thanks Paul. This one works for me: https://stackoverflow.com/a/63650106/4440181

[paulb777]

I'm going to close based on the fix in CocoaPods 1.10 and workarounds available for earlier versions.

Potentially there is a more fundamental discussion about generating umbrella headers with brackets instead of quotes, but that should be taken up in the CocoaPods repo.

[saad522]

See https://stackoverflow.com/questions/63646607/xcode-12-using-firebase-pods-lexical-or-preprocessor-issue-pb-h-file-not-fou/63648164#63648164
Thanks Paul.