尝试构建 flutter 项目时出错

Question

我在构建我的应用程序时遇到问题（旧的应用程序正在运行，但我所有的新项目都收到此消息）我已经尝试重启我的电脑并重新安装 flutter，但这并没有改变错误，而且我在任何地方都找不到解决方案

Launching lib\main.dart on Android SDK built for x86 in debug mode...
Running Gradle task 'assembleDebug'...
'D:\projects\CalendarProject' is not recognized as an internal or external command,
operable program or batch file.
Exception: Gradle task assembleDebug failed with exit code 1

此 projects\CalendarProject 是一个旧项目，但我尝试构建的每个项目都会收到指向 D:\projects\CalendarProject

的消息

我的 flutter 医生看起来也很好

[√] Flutter (Channel stable, 1.20.4, on Microsoft Windows [Version 10.0.18363.1082], locale en-US)
    • Flutter version 1.20.4 at C:\src\flutter
    • Framework revision fba99f6cf9 (4 days ago), 2020-09-14 15:32:52 -0700
    • Engine revision d1bc06f032
    • Dart version 2.9.2


[!] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at D:\android\AndroidVirtual
    • Platform android-29, build-tools 29.0.3
    • ANDROID_SDK_ROOT = D:\android\AndroidVirtual
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)
    ! Some Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses

[√] Android Studio (version 3.5)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 44.0.1
    • Dart plugin version 191.8593
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)

[!] IntelliJ IDEA Community Edition (version 2019.1)
    • IntelliJ at C:\Users\Joâo Pedro\IntelliJ IDEA Community Edition 2019.1.3
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
    • For information about installing plugins, see
      https://flutter.dev/intellij-setup/#installing-the-plugins

[√] VS Code (version 1.49.0)
    • VS Code at C:\Users\Joâo Pedro\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.14.1

[√] Connected device (1 available)
    • Android SDK built for x86 (mobile) • emulator-5554 • android-x86 • Android 10 (API 29) (emulator)

我认为是 android 文件夹中的一个配置产生了这个错误，但无法想象它会是什么

Answer 1

你在 android studio 中使用 flutter 吗？如果是这样，请尝试在“vs code”中打开项目，android studio 中的 flutter 似乎有问题...

Answer 2

已解决：

我用来创建项目的文件夹位于名为“D:\projects\CalendarProject(V3)”的文件夹中（例如：D:\projects\CalendarProject(V3)\flutter_app ) ，不知道它是 android sdk 还是 flutter 错误，但显然其中一个人认为 CalendarProject(V3) 是一个函数并试图运行它。这解释了消息

'D:\projects\CalendarProject' is not recognized as an internal or external command,
operable program or batch file.

已通过更改目录修复

您可以通过以下方式重现错误：

>>mkdir teste(v3)
>>cd "teste(v3)"
>>flutter create app
>>cd app
>>flutter build apk

尝试构建 flutter 项目时出错

Error while trying to build flutter project

android

build

apk

dart

flutter