日志:E:\Flutter>flutterdoctorCheckingDartSDKversion...DownloadingDartSDKfromFlutterengineead227fa...UnzippingDartSDK...Updatingfluttertool...Error:Unableto'pubupgrade'fluttertool.Retryinginfiveseconds...Waitingfor0seconds,pressCTRL+Ctoquit...Error:Unableto'pubupgrade'fluttertool.Retryinginfiveseco
日志:E:\Flutter>flutterdoctorCheckingDartSDKversion...DownloadingDartSDKfromFlutterengineead227fa...UnzippingDartSDK...Updatingfluttertool...Error:Unableto'pubupgrade'fluttertool.Retryinginfiveseconds...Waitingfor0seconds,pressCTRL+Ctoquit...Error:Unableto'pubupgrade'fluttertool.Retryinginfiveseco
我在Flutter中使用事件channel将信标数据从NativeSDK返回到Flutter。在最近的Flutter升级之前，它工作正常。现在，我收到以下错误。type'(PlatformException)=>void'isnotasubtypeoftype'(Object)=>FutureOr具有以下堆栈跟踪:#0_registerErrorHandler(dart:async/async_error.dart:22:60)#1_BufferingStreamSubscription.onError(dart:async/stream_impl.dart:146:16)#2new_
我在Flutter中使用事件channel将信标数据从NativeSDK返回到Flutter。在最近的Flutter升级之前，它工作正常。现在，我收到以下错误。type'(PlatformException)=>void'isnotasubtypeoftype'(Object)=>FutureOr具有以下堆栈跟踪:#0_registerErrorHandler(dart:async/async_error.dart:22:60)#1_BufferingStreamSubscription.onError(dart:async/stream_impl.dart:146:16)#2new_
当我想运行我的flutter应用程序时出现此错误。我使用的是flutter1.0.0版本和androidstudio3.2.1版本。我的模拟器是Pixel2android8.1。我也用过android9，但也没用。Launchinglib\main.dartonAndroidSDKbuiltforx86indebugmode...Initializinggradle...Resolvingdependencies...*ErrorrunningGradle:ProcessException:Process"E:\TUT\flutter\project\myfirstapp\androi
当我想运行我的flutter应用程序时出现此错误。我使用的是flutter1.0.0版本和androidstudio3.2.1版本。我的模拟器是Pixel2android8.1。我也用过android9，但也没用。Launchinglib\main.dartonAndroidSDKbuiltforx86indebugmode...Initializinggradle...Resolvingdependencies...*ErrorrunningGradle:ProcessException:Process"E:\TUT\flutter\project\myfirstapp\androi
首先:我用谷歌搜索“flutterdoctor”并搜索了你的网站也是如此。我将在下面详细说明我的结果，但在此之前我在这里:1)我按照https://flutter.io/setup-windows/的指示进行操作直到我无法继续。2)我的环境是:Windows10、64位、210Gb可用空间Intel(R)Core(TM)i5-2320CPU@3.00GHz；8.00GB安装内存(RAM)IhavePowerShell5.1,IhavesetupGitforWindowswith"UseGitfromtheWindowsCommandPrompt"optionIamabletorungi
首先:我用谷歌搜索“flutterdoctor”并搜索了你的网站也是如此。我将在下面详细说明我的结果，但在此之前我在这里:1)我按照https://flutter.io/setup-windows/的指示进行操作直到我无法继续。2)我的环境是:Windows10、64位、210Gb可用空间Intel(R)Core(TM)i5-2320CPU@3.00GHz；8.00GB安装内存(RAM)IhavePowerShell5.1,IhavesetupGitforWindowswith"UseGitfromtheWindowsCommandPrompt"optionIamabletorungi
我按照https://github.com/flutter/flutter/issues/9365中的建议构建了一个滚动文本字段.现在我希望ConstrainedBox的maxHeight根据显示或未显示的键盘动态变化。有办法实现吗？Widget_buildTextInput(){returnnewContainer(padding:newEdgeInsets.all(7.0),child:newConstrainedBox(constraints:newBoxConstraints(maxHeight:150.0Theredboxshouldbetheconstrainedboxwi
我按照https://github.com/flutter/flutter/issues/9365中的建议构建了一个滚动文本字段.现在我希望ConstrainedBox的maxHeight根据显示或未显示的键盘动态变化。有办法实现吗？Widget_buildTextInput(){returnnewContainer(padding:newEdgeInsets.all(7.0),child:newConstrainedBox(constraints:newBoxConstraints(maxHeight:150.0Theredboxshouldbetheconstrainedboxwi
