你好，我是第一次使用Firebase，但是当我运行程序时，出现此错误，有人知道什么可能是错的吗？
（“Oláeu estou firebase pela primeira vez，mas quando eu executar o meu programa me este erroalguémsabe o que pode estar errado？”
主要错误：未找到cloud_firestore
已更改的错误：
Xcode's output:
↳
/Users/indumonta/Documents/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/indumonta/Documents/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.
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:351:26: error: unknown receiver 'FIRSetOptions'; did you mean 'FIROptions'?
options:[FIRSetOptions merge]
^~~~~~~~~~~~~
FIROptions
In module 'FirebaseCore' imported from /Users/indumonta/AndroidStudioProjects/firebase/ios/Pods/Headers/Public/Firebase/Firebase.h:15:
/Users/indumonta/AndroidStudioProjects/firebase/ios/Pods/FirebaseCore/FirebaseCore/Sources/Public/FIROptions.h:25:12: note: 'FIROptions' declared here
@interface FIROptions : NSObject <NSCopying>
^
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:351:40: error: no known class method for selector 'merge'
options:[FIRSetOptions merge]
^~~~~
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:350:17: error: no visible @interface for 'FIRDocumentReference' declares the selector 'setData:options:completion:'
[document setData:call.arguments[@"data"]
~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:440:76: error: unknown receiver 'FIRSetOptions'; did you mean 'FIROptions'?
[batch setData:call.arguments[@"data"] forDocument:document options:[FIRSetOptions merge]];
^~~~~~~~~~~~~
FIROptions
In module 'FirebaseCore' imported from /Users/indumonta/AndroidStudioProjects/firebase/ios/Pods/Headers/Public/Firebase/Firebase.h:15:
/Users/indumonta/AndroidStudioProjects/firebase/ios/Pods/FirebaseCore/FirebaseCore/Sources/Public/FIROptions.h:25:12: note: 'FIROptions' declared here
@interface FIROptions : NSObject <NSCopying>
^
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:440:90: error: no known class method for selector 'merge'
[batch setData:call.arguments[@"data"] forDocument:document options:[FIRSetOptions merge]];
^~~~~
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:440:14: error: no visible @interface for 'FIRWriteBatch' declares the selector 'setData:forDocument:options:'
[batch setData:call.arguments[@"data"] forDocument:document options:[FIRSetOptions merge]];
~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:270:7: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
transactions[transactionId] = transaction;
^
self->
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:277:29: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
transactionResults[transactionId] = doTransactionResult;
^
self->
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:284:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
return transactionResults[transactionId];
^
self->
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:298:37: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
FIRTransaction *transaction = transactions[transactionId];
^
self->
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:322:37: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
FIRTransaction *transaction = transactions[transactionId];
^
self->
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:331:37: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
FIRTransaction *transaction = transactions[transactionId];
^
self->
/Users/indumonta/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.6.3/ios/Classes/CloudFirestorePlugin.m:340:37: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
FIRTransaction *transaction = transactions[transactionId];
^
self->
10 warnings and 6 errors generated.
note: Using new build system
note: Building targets in parallel
note: Planning build
note: Constructing build description
Could not build the application for the simulator.
Error launching application on iPhone 11.
答案 0 :(得分：0)
在终端中运行以下命令：
flutter clean
然后：
flutter build ios
答案 1 :(得分：0)
转到根文件夹中的ios目录并运行pod install，此问题将得到解决
如果它告诉您pod无法识别或运行brew install ruby