小编Abh*_*mol的帖子

嗨，我是扑扑和飞镖的新手。我在排版地图方面遇到困难。我在 Firestore 上保存了一些数据，格式为HashMap<String,List<String>>. 在我的 Flutter 应用程序中，当我获取这些数据时，我以LinkedHashMap<dynamic,dynamic>. 我想将其转换LinkedHashMap为HashMap<String,List<String>>. 请帮忙。

LinkedHashMap<dynamic,dynamic> mapUserWatchlistCompanies= documentSnapshot.data['Watchlist']; // Fetched data.

HashMap<String,List<String>> hashMapUserWatchlist = ???//How can it be converted? Need help here.

我昨天更新了 Gradle 插件，现在 android studio 无法构建我的应用程序。该应用程序显示以下错误。

    ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve io.grpc:grpc-core:[1.16.1].
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Affected Modules: app


ERROR: Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve io.grpc:grpc-core:[1.16.1].
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Affected Modules: app


ERROR: Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve io.grpc:grpc-core:[1.16.1].
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Affected Modules: app


ERROR: Unable to resolve dependency for ':app@release/compileClasspath': Could not resolve io.grpc:grpc-core:[1.16.1].
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Affected Modules: app


ERROR: Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not resolve …