firebase-ios-sdk: Apple Mach-O Linker (ld) Error Group

• Xcode version: Xcode 9.0 (9A235) (GM version)
• Firebase SDK version: Firebase 4.1.1
• Library version: _____
• Firebase Product: core, crash

Step 3: Describe the problem

At build generate error Apple Mach-O Linker (ld) Error Group

ld: warning: directory not found for option '-F/Users/me/Library/Developer/Xcode/DerivedData/My App-cbbpbhsjrtvjwkakgwmzqckliizs/Build/Products/Debug-iphoneos/GoogleToolboxForMac'
ld: warning: directory not found for option '-F/Users/me/Library/Developer/Xcode/DerivedData/My App-cbbpbhsjrtvjwkakgwmzqckliizs/Build/Products/Debug-iphoneos/Protobuf'
ld: warning: directory not found for option '-F/Users/me/Library/Developer/Xcode/DerivedData/My App-cbbpbhsjrtvjwkakgwmzqckliizs/Build/Products/Debug-iphoneos/nanopb'
ld: framework not found GoogleToolboxForMac
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Steps to reproduce:

1. Create a project and with CocoaPods define a Podfile:

source 'https://github.com/CocoaPods/Specs.git'

platform :ios, '9.0'
use_frameworks!

target 'My App' do
  pod 'Firebase/Analytics'
  pod 'Firebase/Crash'
end

1. Install pods

$ pod --version
1.3.1

$ pod install
Analyzing dependencies
Downloading dependencies
Installing Firebase (4.1.1)
Installing FirebaseAnalytics (4.0.3)
Installing FirebaseCore (4.0.6)
Installing FirebaseCrash (2.0.1)
Installing FirebaseInstanceID (2.0.2)
Installing GoogleToolboxForMac (2.1.1)
Installing Protobuf (3.4.0)
Installing nanopb (0.3.8)
Generating Pods project
Integrating client project

[!] Please close any current Xcode sessions and use `My App.xcworkspace` for this project from now on.
Sending stats
Pod installation complete! There are 3 dependencies from the Podfile and 9 total pods installed.

1. Build the app