我最近构建了一个在Android Play Store上测试的发布版本。问题是我不能让它回到调试模式。当我尝试在调试模式下启动时,控制台上会显示以下消息:
Launching lib\main.dart on SM P585 in release mode...
Running Gradle task 'assembleRelease'..
这是我的build.gradle文件的样子:
def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.prop
我目前有一个TabBarView.The TabBarView有3个选项卡。第二个选项卡有一个页面,其中也有两个选项卡。现在的问题是,如果我直接从tab0切换到tab2。我得到以下错误:
flutter: ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
flutter: The following assertion was thrown while finalizing the widget tree:
flutter: 'pack
我想做一个简单的颤动应用程序,并想添加一个图像从我的资产,我已经尝试,但图像仍然无法加载。这就是我加载图像的方式
Image.asset('assets/images/food.jpg')
pubspec.yaml代码:
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-ma
我想在背景中设置图像,我已经在项目名称下创建了一个资产文件夹,并将图像粘贴在其中,我编写了下面的代码。但它显示出这样的错误,
I/flutter (13556):
I/flutter (13556): When the exception was thrown, this was the stack:
I/flutter (13556): #0 PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)
I/flutter (13556): <asynchronous susp
这是我试图循环通过的字符串,所以我尝试将其转换为JSON。
{to_address_mobile: [The to address mobile field is required.], to_address_area_number_id: [The to address area number id field is required.]}
下面是我尝试这样做的方法:
for (var validationError in json.decode('[${resp['data']}]')){
print(valida
此错误发生在运行命令'flutter packages get‘时。我为pubspec.yaml文件添加了一些依赖项以使用firebase身份验证:
name: flutter_auth
description: A new Flutter project.
version: 1.0.0+1
environment:
sdk: ">=2.1.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to y
当我运行flutter doctor时,它显示了以下错误: Running flutter doctor...
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel stable, v1.2.1, on Microsoft Windows [Version 10.0.17134.112], locale en-US)
[!] Android toolchain - develop for Android devices (Android SDK version 27.0.3)
当我在Android Emulator上运行我的flutter应用程序时,它运行时没有错误,但当我在我的移动设备上运行它时,它在调试控制台中显示以下错误: 正在以调试模式启动HD1901上的lib\main.dart ...失败:生成失败,出现异常。 * What went wrong:
Execution failed for task ':app:compileDebugKotlin'.
> Could not resolve all artifacts for configuration ':app:debugCompileClasspath'.
我有一个BottomNavigationBar的5菜单。当我从一个切换到另一个时,有时我会收到这样的错误消息
E/flutter (13314): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: setState() called after dispose(): _PromoProductState#a00c8(lifecycle state: defunct, not mounted)
E/flutter (13314): This error happens if you call setState()
在创建RMarkdown 时,目录中会显示一些额外的(空白)项。
示例
这将生成下面的html文档
---
output:
html_document:
toc: true
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo =真)
# First Tabs {.tabset .tabset-fade .tabset-pills}
Text before tabs
## First tab
Content in first tab
## Second tab
Content in second tab
当我使用我的应用程序单击“与google一起登录”按钮时,它的意思是在弹出窗口中显示google日志,但是我得到了以下错误:
W/DynamiteModule(15856): Local module descriptor class for com.google.android.gms.auth.api.fallback not found.
E/flutter (15856): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: PlatformException(sign_in_failed, com.goo
当我从颤振移动到网络时,我注意到在控制台上打印的日志没有帮助,因为它们没有针对我的IDE (Android )在移动环境中的代码:
======= Exception caught by widgets library =======================================================
The following message was thrown building PhoneSignUpPage(state: _PhoneSignUpPageState#b52e9):
some error
The relevant error-causing
目前我使用的是带有Flutter插件的Android Studio。而且我在仅有的iOS模拟器上运行app也没有任何问题。尽管如此,我还是想添加额外的模拟器来测试不同的屏幕大小。敬请指教。
% flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.12.13+hotfix.5, on Mac OS X 10.15.2 19C57, locale en-UA)
[✓] Android toolchain - develop for An
我有一个现有的颤振应用程序(),它在我的Windows 11和MacOS机器上运行得很好,以前也在我的Linux机器上工作。
几天前,我安装了一个新的发行版(OpenSUSE Tumbleweed),现在无法使用安卓系统。它会失败,不同的错误取决于尝试不同SDK版本的阶段,等等,但是我现在所处的错误(删除所有内容并重新删除它之后)是:
Execution failed for task ':app:dependencies'.
> Could not resolve all dependencies for configuration ':app:androidA
我使用的是Android 3.6.3,最新版本。安装了颤振插件后,它在表面上显示什么都没有开始一个项目。
Doctor summary (to see all details, run flutter doctor -v):
Linux上的v1.12.13+hotfix.9频道稳定的✓Flutter,locale en_US.utf-8!Android工具链-为Android设备开发(Android版本29.0.2)!一些Android许可证不被接受。要解决这一问题,请运行: flutter - Android -许可✓Android(版本3.6)!IntelliJ创意社区版(2019.1版)