gRPC-Core Apple Mach O-Linker Errors after Xcode 9 Update

[famAlex]

Hello there,
starting with a clean new project, I used cocoapods to install the following:

`platform :ios, '8.0'
target 'My App' do
use_frameworks!

Pods for My app

pod 'Firebase/Core'
pod 'Firebase/Auth'
pod 'FirebaseUI/Auth', '~> 4.0'
pod 'FirebaseUI/Google', '~> 4.0'
pod 'FirebaseUI/Phone', '~> 4.0'

`

everything works fine, but adding pod 'FirebaseFirestore', '~> 0.9' results on errors you can see below.

I tried with several combinations of:
deleting Derived Data,
Clean + Clean Build Folder
Enable Bitcode --> No

but nothing changed. Anyone else is experiencing the same issue or maybe am I making something wrong?
Kind regards
Alessandro

• Xcode version: 9.0 and 9.1
• Firebase SDK version: 4.5
• Firebase Component: _____ (Auth, Core, Firestore, FirebaseUI)
• Component version: 0.9.1

[paulb777]

Those missing symbols should be built as part of the grpc-Core build. For example -

Pods/gRPC-Core/src/core/lib/support/string.c:int gpr_ltoa(long value, char *string) {

What version of CocoaPods are you using? At least 1.2.0 is required.

pod --version

[famAlex]

my pod version is 1.2.0

[goalguy10]

I am having the same exact issue. My pod version is 1.3.1

[morganchen12]

Can one of you upload a project that reproduces this?

[famAlex]

https://mega.nz/#!E9lVVLZJ!Q4uvfnYtOK6h9QoVCXkAOe7L2eGBeCYC0FRZAqr2W0U

I just created a new project,
pod init,
added the pods ,
pod install
and run

But if you remove firestore pod, everything works again

[lucaventura]

I can confirm I'm having this same problem with both CocoaPods v. 1.2.0 and 1.3.1 and Xcode v. 9.1.

[Lukaris]

I guess its just missing some coding in the grpc-core .. I have the same problem XCode 9.2 Beta

[morganchen12]

Looks like an issue in gRPC-Core. For the time being you can work around this by putting

pod 'gRPC', `1.6.5`

in your Podfile.

[muxi]

gRPC has resolved the problem; the problem was due to inadvertent duplicated named ref 'v1.7.0' in gRPC repo. For those of you who had this problem, you can clean Cocoapods cache on gRPC related pods (gRPC-Core, gRPC, gRPC-ProtoRPC, gRPC-RxLibrary) then pod install again.

[paulb777]

gRPC 1.7.1 is now available that fixes the issue.

Thanks to everyone for the reports and to @muxi for the quick turnaround on the fix!