title: Flutter Firebase Project won't compile after 'pod update'
body: <p>after I run pod update in my flutter project, my project won't compile for iOs. Thats what I already tried.</p>
  
  <ul>
  <li>Deleting the Pod Folder.</li>
  <li>Deleting the Podfile</li>
  <li>Running Pod init to create a new Podfile</li>
  <li><p>Paste the Code to the new Podfile and run Pod istall again.</p>
  
  <p>
  $ flutter doctor -v
  </p>
  
  <blockquote>
    <p>[✓] Flutter (Channel dev, v1.2.1, on Mac OS X 10.14.3 18D109, locale de-DE)
        • Flutter version 1.2.1 at /Users/mainuser/Development/flutter
        • Framework revision 8661d8aecd (3 days ago), 2019-02-14 19:19:53 -0800
        • Engine revision 3757390fa4
        • Dart version 2.1.2 (build 2.1.2-dev.0.0 0a7dcf17eb)</p>
    
    <p>[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
        • Android SDK at /Users/alexanderwilke/Library/Android/sdk
        • Android NDK location not configured (optional; useful for native profiling support)
        • 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-1248-b01)
        • All Android licenses accepted.</p>
    
    <p>[✓] 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 1.6.0</p>
    
    <p>[✓] Android Studio (version 3.3)
        • Android Studio at /Applications/Android Studio.app/Contents
        • Flutter plugin version 32.0.1
        • Dart plugin version 182.5215
        • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)</p>
    
    <p>[✓] VS Code (version 1.31.1)
        • VS Code at /Applications/Visual Studio Code.app/Contents
        • Flutter extension version 2.23.0</p>
    
    <p>[!] Connected device
        ! No devices available</p>
  </blockquote></li>
  </ul>
  
  <hr>
  
  <pre><code>Error Output:
  
  Running pod install...                                              4,7s
  
  &gt; Xcode build done.                                            3,6s
  Failed to build iOS app
  Error output from Xcode build:
  ↳
      ** BUILD FAILED **
  
  
  &gt; Xcode's output:
  ↳
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:29:50: warning: 'window' is only available on iOS 5.0 or newer
      [-Wunguarded-availability]
            [UIApplication sharedApplication].delegate.window.rootViewController;
                                                       ^~~~~~
      In module 'UIKit' imported from /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/Target Support Files/image_picker/image_picker-prefix.pch:2:
      /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.1.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIApplication.h:398:51: note: 'window' has been explicitly
      marked partial here
      @property (nullable, nonatomic, strong) UIWindow *window NS_AVAILABLE_IOS(5_0);
                                                        ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:29:50: note: enclose 'window' in an @available check to silence this warning
            [UIApplication sharedApplication].delegate.window.rootViewController;
                                                       ^~~~~~
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:79:45: warning: 'kUTTypeAVIMovie' is only available on iOS 8.0 or newer
      [-Wunguarded-availability]
            (NSString *)kUTTypeMovie, (NSString *)kUTTypeAVIMovie, (NSString *)kUTTypeVideo,
                                                  ^~~~~~~~~~~~~~~
      In module 'MobileCoreServices' imported from /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:7:
      In module 'CoreServices' imported from
      /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.1.sdk/System/Library/Frameworks/MobileCoreServices.framework/Headers/MobileCoreServices.h:9:
      /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.1.sdk/System/Library/Frameworks/CoreServices.framework/Headers/UTCoreTypes.h:892:26: note: 'kUTTypeAVIMovie' has been
      explicitly marked partial here
      extern const CFStringRef kUTTypeAVIMovie                             __OSX_AVAILABLE_STARTING(__MAC_10_10,__IPHONE_8_0);
                               ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:79:45: note: enclose 'kUTTypeAVIMovie' in an @available check to silence this
      warning
            (NSString *)kUTTypeMovie, (NSString *)kUTTypeAVIMovie, (NSString *)kUTTypeVideo,
                                                  ^~~~~~~~~~~~~~~
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:111:22: warning: 'presentViewController:animated:completion:' is only available on
      iOS 5.0 or newer [-Wunguarded-availability]
          [_viewController presentViewController:_imagePickerController animated:YES completion:nil];
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      In module 'UIKit' imported from /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/Target Support Files/image_picker/image_picker-prefix.pch:2:
      /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.1.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIViewController.h:227:1: note:
      'presentViewController:animated:completion:' has been explicitly marked partial here
      - (void)presentViewController:(UIViewController *)viewControllerToPresent animated: (BOOL)flag completion:(void (^ __nullable)(void))completion NS_AVAILABLE_IOS(5_0);
      ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:111:22: note: enclose 'presentViewController:animated:completion:' in an @available
      check to silence this warning
          [_viewController presentViewController:_imagePickerController animated:YES completion:nil];
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:124:20: warning: 'presentViewController:animated:completion:' is only available on
      iOS 5.0 or newer [-Wunguarded-availability]
        [_viewController presentViewController:_imagePickerController animated:YES completion:nil];
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      In module 'UIKit' imported from /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/Target Support Files/image_picker/image_picker-prefix.pch:2:
      /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.1.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIViewController.h:227:1: note:
      'presentViewController:animated:completion:' has been explicitly marked partial here
      - (void)presentViewController:(UIViewController *)viewControllerToPresent animated: (BOOL)flag completion:(void (^ __nullable)(void))completion NS_AVAILABLE_IOS(5_0);
      ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:124:20: note: enclose 'presentViewController:animated:completion:' in an @available
      check to silence this warning
        [_viewController presentViewController:_imagePickerController animated:YES completion:nil];
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:131:27: warning: 'dismissViewControllerAnimated:completion:' is only available on
      iOS 5.0 or newer [-Wunguarded-availability]
        [_imagePickerController dismissViewControllerAnimated:YES completion:nil];
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      In module 'UIKit' imported from /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/Target Support Files/image_picker/image_picker-prefix.pch:2:
      /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.1.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIViewController.h:229:1: note:
      'dismissViewControllerAnimated:completion:' has been explicitly marked partial here
      - (void)dismissViewControllerAnimated: (BOOL)flag completion: (void (^ __nullable)(void))completion NS_AVAILABLE_IOS(5_0);
      ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:131:27: note: enclose 'dismissViewControllerAnimated:completion:' in an @available
      check to silence this warning
        [_imagePickerController dismissViewControllerAnimated:YES completion:nil];
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:185:27: warning: 'dismissViewControllerAnimated:completion:' is only available on
      iOS 5.0 or newer [-Wunguarded-availability]
        [_imagePickerController dismissViewControllerAnimated:YES completion:nil];
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      In module 'UIKit' imported from /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/Target Support Files/image_picker/image_picker-prefix.pch:2:
      /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.1.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIViewController.h:229:1: note:
      'dismissViewControllerAnimated:completion:' has been explicitly marked partial here
      - (void)dismissViewControllerAnimated: (BOOL)flag completion: (void (^ __nullable)(void))completion NS_AVAILABLE_IOS(5_0);
      ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/ios/Classes/ImagePickerPlugin.m:185:27: note: enclose 'dismissViewControllerAnimated:completion:' in an @available
      check to silence this warning
        [_imagePickerController dismissViewControllerAnimated:YES completion:nil];
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      6 warnings generated.
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:4:8: error: unknown type name 'FIRVisionLabelDetector'; did you mean
      'FIRVisionFaceDetector'?
      static FIRVisionLabelDetector *detector;
             ^~~~~~~~~~~~~~~~~~~~~~
             FIRVisionFaceDetector
      In module 'FirebaseMLVision' imported from /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/Headers/Private/Firebase/Firebase.h:70:
      /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/FirebaseMLVision/Frameworks/FirebaseMLVision.framework/Headers/FIRVisionFaceDetector.h:22:12: note: 'FIRVisionFaceDetector' declared here
      @interface FIRVisionFaceDetector : NSObject
                 ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:35:4: error: expected a type
      + (FIRVisionLabelDetectorOptions *)parseOptions:(NSDictionary *)optionsData {
         ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:10:22: error: no visible @interface for 'FIRVision' declares the selector
      'labelDetectorWithOptions:'
        detector = [vision labelDetectorWithOptions:[LabelDetector parseOptions:options]];
                    ~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:13:37: error: unknown type name 'FIRVisionLabel'; did you mean 'FIRVisionFace'?
                     completion:^(NSArray&lt;FIRVisionLabel *&gt; *_Nullable labels, NSError *_Nullable error) {
                                          ^~~~~~~~~~~~~~
                                          FIRVisionFace
      In module 'FirebaseMLVision' imported from /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/Headers/Private/Firebase/Firebase.h:70:
      /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/FirebaseMLVision/Frameworks/FirebaseMLVision.framework/Headers/FIRVisionFaceDetector.h:3:8: note: 'FIRVisionFace' declared here
      @class FIRVisionFace;
             ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:22:23: error: use of undeclared identifier 'FIRVisionLabel'
                       for (FIRVisionLabel *label in labels) {
                            ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:22:39: error: use of undeclared identifier 'label'; did you mean 'labels'?
                       for (FIRVisionLabel *label in labels) {
                                            ^~~~~
                                            labels
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:13:66: note: 'labels' declared here
                     completion:^(NSArray&lt;FIRVisionLabel *&gt; *_Nullable labels, NSError *_Nullable error) {
                                                                       ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:24:40: error: use of undeclared identifier 'label'
                           @"confidence" : @(label.confidence),
                                             ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:25:36: error: use of undeclared identifier 'label'
                           @"entityID" : label.entityID,
                                         ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:26:33: error: use of undeclared identifier 'label'
                           @"label" : label.label
                                      ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:12:13: error: no visible @interface for 'FIRVisionFaceDetector' declares the
      selector 'detectInImage:completion:'
        [detector detectInImage:image
         ~~~~~~~~ ^~~~~~~~~~~~~~~~~~~
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:37:12: error: unknown receiver 'FIRVisionLabelDetectorOptions'; did you mean
      'FIRVisionFaceDetectorOptions'?
        return [[FIRVisionLabelDetectorOptions alloc] initWithConfidenceThreshold:[conf floatValue]];
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                 FIRVisionFaceDetectorOptions
      In module 'FirebaseMLVision' imported from /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/Headers/Private/Firebase/Firebase.h:70:
      /Users/mainuser/Documents/flutter_projects/firebaseProject/ios/Pods/FirebaseMLVision/Frameworks/FirebaseMLVision.framework/Headers/FIRVisionFaceDetectorOptions.h:72:12: note: 'FIRVisionFaceDetectorOptions'
      declared here
      @interface FIRVisionFaceDetectorOptions : NSObject
                 ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_ml_vision-0.2.1/ios/Classes/LabelDetector.m:37:49: error: no visible @interface for 'FIRVisionFaceDetectorOptions' declares the
      selector 'initWithConfidenceThreshold:'
        return [[FIRVisionLabelDetectorOptions alloc] initWithConfidenceThreshold:[conf floatValue]];
                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~
      12 errors generated.
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.2.5+1/ios/Classes/FirebaseCorePlugin.m:13:17: warning: property 'dictionary' requires method 'dictionary' to be defined -
      use @dynamic or provide a method implementation in this category [-Wobjc-property-implementation]
      @implementation FIROptions (FLTFirebaseCorePlugin)
                      ^
      /Users/mainuser/Development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.2.5+1/ios/Classes/FirebaseCorePlugin.m:10:46: note: property declared here
      @property(readonly, nonatomic) NSDictionary *dictionary;
                                                   ^
      1 warning generated.
  </code></pre>