現在、Embedded Framework で複数ターゲットに分割して開発しているのですが、
CocoaPodsでFirebaseを複数ターゲットにインストールすると起動後にクラッシュしてしまいます。

objc[97307]: Class FIRMessagingLog is implemented in both /Users/yuto/Library/Developer/Xcode/DerivedData/App-bgkajtjdcnvxnxexzeaimkikirwu/Build/Products/Release-iphonesimulator/App.framework/App (0x10393ad98) and /Users/yuto/Library/Developer/CoreSimulator/Devices/871E1A28-1266-4B31-BF14-A84577AA550D/data/Containers/Bundle/Application/81283C37-9D64-425F-A316-9303BD252618/App.app/App (0x1020f43b0). One of the two will be used. Which one is undefined.
objc[97307]: Class VCWeakObjectHolder is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AVConference.framework/Frameworks/ViceroyTrace.framework/ViceroyTrace (0x12556c4d0) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AVConference.framework/AVConference (0x1246bae38). One of the two will be used. Which one is undefined.
2018-06-28 10:58:37.719414+0900 App[97307:3379853] 5.3.0 - [Firebase/Core][I-COR000005] No app has been configured yet.

Podfileは以下のようにしています。

abstract_target 'Top' do
  # Uncomment the next line to define a global platform for your project
  platform :ios, '10.0'

  pod 'Firebase/Core'
  pod 'Firebase/Auth'

  target 'App' do
    # Comment the next line if you're not using Swift and don't want to use dynamic frameworks
    use_frameworks!

    # Pods for App

    target 'AppTests' do
      inherit! :search_paths
      # Pods for testing
    end

  end

  target 'AppExtension' do
    # Comment the next line if you're not using Swift and don't want to use dynamic frameworks
    use_frameworks!

    # Pods for AppExtension

  end

  target 'AppFlux' do
    # Comment the next line if you're not using Swift and don't want to use dynamic frameworks
    use_frameworks!

    # Pods for AppFlux

  end

  target 'AppKit' do
    # Comment the next line if you're not using Swift and don't want to use dynamic frameworks
    use_frameworks!

    # Pods for AppKit

  end

  target 'AppUI' do
    # Comment the next line if you're not using Swift and don't want to use dynamic frameworks
    use_frameworks!

    # Pods for AppUI

  end
end

環境
Xcode: 9.4.1
CocoaPods: 5.0.1

下記を参考にしましたが、具体的な解決策が見つからず困っています
- https://teratail.com/questions/87567
- https://github.com/firebase/quickstart-ios/issues/231

ご回答いただけるととても嬉しく思います。
よろしくお願いいたします。