iOS build errors - v0.1.1

[gmcdowell]

Am encountering a couple of issues when trying to build iOS.
Any tips/suggestions appreciated.

Crashlytics Configuration steps done

1. Info.plist updated with Fabric ID
2. Podfile: use_frameworks! (at top of file)
3. Run script (last entry in list) added using snippet provided by Fabric e.g. "${PODS_ROOT}/Fabric/run" xxxxxx yyyyyy
4. Info plist location configured for Run script entry above e.g. $(BUILT_PRODUCTS_DIR)/$(INFOPLIST_PATH)

General config details**

• Legacy build system being used

Build CMD

flutter build ios -t lib/config/production.dart --release --no-codesign

Output:

Starting Xcode build...
├─Building Dart code... 38.0s

├─Generating dSYM file... 0.2s

├─Stripping debug symbols... 0.1s

├─Assembling Flutter resources... 1.9s

└─Compiling, linking and signing... 4.8s

Xcode build done. 47.9s
Failed to build iOS app
Error output from Xcode build:
↳
** BUILD FAILED **

Xcode's output:
↳
=== BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Release ===
ld: warning: Could not find auto-linked library 'swiftObjectiveC'
ld: warning: Could not find auto-linked library 'swiftCoreGraphics'
ld: warning: Could not find auto-linked library 'swiftCore'
ld: warning: Could not find auto-linked library 'swiftQuartzCore'
ld: warning: Could not find auto-linked library 'swiftCoreFoundation'
ld: warning: Could not find auto-linked library 'swiftDarwin'
ld: warning: Could not find auto-linked library 'swiftUIKit'
ld: warning: Could not find auto-linked library 'swiftCoreMedia'
ld: warning: Could not find auto-linked library 'swiftDispatch'
ld: warning: Could not find auto-linked library 'swiftFoundation'
ld: warning: Could not find auto-linked library 'swiftMetal'
ld: warning: Could not find auto-linked library 'swiftCoreImage'
ld: warning: Could not find auto-linked library 'swiftCoreAudio'
Undefined symbols for architecture arm64:
"dispatch thunk of Swift.Error._code.getter : Swift.Int", referenced from:
resilient protocol witness table for flutter_crashlytics.FlutterException : Swift.Error in flutter_crashlytics in
flutter_crashlytics(SwiftFlutterCrashlyticsPlugin.o)
resilient protocol witness table for flutter_crashlytics.FlutterCrash : Swift.Error in flutter_crashlytics in
flutter_crashlytics(SwiftFlutterCrashlyticsPlugin.o)
...

Environment details:

[✓] Flutter (Channel dev, v0.11.9, on Mac OS X 10.14.1 18B75, locale en-NZ)
• Flutter version 0.11.9 at /Users/greg/Library/Developer/flutter
• Framework revision d48e6e433c (6 days ago), 2018-11-20 22:05:23 -0500
• Engine revision 5c8147450d
• Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
• Android SDK at /Users/greg/Library/Android/sdk
• Android NDK at /Users/greg/Library/Android/sdk/ndk-bundle
• Platform android-28, build-tools 28.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
• All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 10.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 10.1, Build version 10B61
• ios-deploy 1.9.4
• CocoaPods version 1.5.3

[✓] Android Studio (version 3.2)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 30.0.1
• Dart plugin version 181.5656
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)

[✓] VS Code (version 1.29.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 2.20.0

[✓] Connected device (2 available)
• SM G570Y • 42008566cef5540b • android-arm • Android 8.0.0 (API 26) (emulator)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)

• No issues found!

[gmcdowell]

Resolved by adding empty swift file to project to have Xcode (10) auto-generated a bridging file, as described:
flutter/flutter#16049