如何在颤振中降级软件包？

Posted 2023-02-23

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【中文标题】如何在颤振中降级软件包？【英文标题】：How to downgrade packages in flutter? 【发布时间】：2020-03-31 12:23:19 【问题描述】：

cloud_firestore 0.12.11 在颤振中不适合我，它不允许我的应用程序在调试中启动。我将如何降级这个包？在 pubspec 文件中，我使用了较低版本的 cloud_firestore，即。 (cloud_firestore: ^0.12.9+4) 然后保存并且 VS Code 得到了包但是当我尝试再次启动时它给出了同样的错误：

                     ~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/kev/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore- 
    0.12.11/ios/Classes/CloudFirestorePlugin.m:157:24: error: no visible @interface for 
    'FIRQuery' declares the selector 'queryWhereFieldPath:arrayContainsAny:'
                query = [query queryWhereFieldPath:fieldPath arrayContainsAny:value];
                     ~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/kev/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore- 
   0.12.11/ios/Classes/CloudFirestorePlugin.m:163:24: error: no visible @interface for 
   'FIRQuery' declares the selector 'queryWhereField:in:'
            query = [query queryWhereField:fieldName in:value];
                     ~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/kev/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore- 
   0.12.11/ios/Classes/CloudFirestorePlugin.m:165:24: error: no visible @interface for 
  'FIRQuery' declares the selector 'queryWhereFieldPath:in:'
                query = [query queryWhereFieldPath:fieldPath in:value];
                     ~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/kev/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore- 
   0.12.11/ios/Classes/CloudFirestorePlugin.m:764:16: warning: 'timestampsInSnapshotsEnabled' 
    is deprecated [-Wdeprecated-declarations]
              settings.timestampsInSnapshotsEnabled = 
    (bool)call.arguments[@"timestampsInSnapshotsEnabled"];
                   ^
    In module 'FirebaseFirestore' imported from 

  /Users/kev/Documents/flutterprojects/shopapp/ios/Pods/Headers/Public/Firebase/Firebase.h:45:

 /Users/kev/Documents/flutterprojects/shopapp/ios/Pods/FirebaseFirestore/Firestore/Source/Public .   /FIRFirestoreSettings.h:69:20: note: 'timestampsInSnapshotsEnabled' has been explicitly marked 
    deprecated here
           __attribute__((deprecated));
                       ^
       1 warning and 4 errors generated.
       note: Using new build systemnote: Planning buildnote: Constructing build description
   Could not build the application for the simulator.
   Error launching application on iPhone X.

当我检查 .pubcache 内的颤振 SDK -> 托管 -> pub.dartlang.org -> 那里有一个文件夹 cloud_firestore 0.12.11 我该如何解决这个问题？当我在 pubspec 文件中注释掉 cloud_firestore 启动时，我的应用程序开始正常。

【问题讨论】：

【参考方案1】：

如果您有任何包冲突，只需在末尾输入any 而不是版本号。而不是flutter_hive: 1.0.0，你喜欢=> flutter_hive: any。它会解决一切。

【讨论】：

【参考方案2】：

是的，您需要删除插入符号，但您还需要清除那些旧（新）文件夹！

在终端窗口中，您需要在项目根目录中运行“$flutter clean”和“$flutter pub upgrade”，并可能删除 Pods/ 文件夹并从头开始重置所有内容。

还可能需要使用“文件/无效缓存”（在 android studio 中）。

【讨论】：

【参考方案3】：