https://storage.flutter-io.cn/flutter_infra_release/releases/stable/windows/flutter_windows_3.10.6-stable.zip
解压之后,将里面的flutter整体拿出来
将flutter/bin全路径配置到系统环境变量里面
打开cmd命令窗口,运行flutter doctor 命令
这个命令运行比较慢,需要耐心等一会儿,注意观察一些错误信息:
X cmdline-tools component is missing
Run path/to/sdkmanager --install "cmdline-tools;latest"
See https://developer.android.com/studio/command-line for more details.
解决
打开Android Studio,进入SDK Manager,在SDK Tools栏,下载Android SDK Command-line Tools (latest)
解决完成!重新 flutter doctor,得到提示信息如下:
X Android license status unknown.
Run ' flutter doctor --android-licenses ' to accept the SDK licenses.
See Windows install | Flutter for more details.
根据错误提示,可以看到,运行flutter doctor --android-licenses命令,接受SDK许可
那就重新打开cmd命令床靠,运行flutter doctor --android-licenses命令
运行flutter doctor --android-licenses命令又报错了
好吧,先解决这个错误,然后再去运行flutter doctor --android-licenses命令,
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/android/sdklib/tool/sdkmanager/SdkManagerCli has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:601)
解决方案:检查本地安装的JDK版本是不是java8,我的就是java8,然后查看一下Android Studio的SDK Manager中的Android sDK Command-line Tools (latest),版本是多少,我的版本是11,与Java的版本8不匹配,这里要匹配上,所以我要重新下载Android sDK Command-line Tools (latest)版本号为8 的,删掉现有的版本号为11的
下载完之后,重新运行flutter doctor --android-licenses命令,不在报错
上面说到,继续运行flutter doctor --android-licenses命令不再报错,但是会一直提示:
XXXXXX(y/N)?:
只需要一路都敲“y”,同意接受就行,这样就完成了SDK许可接受。
完成了上面的授权许可操作,我们再次运行flutter doctor命令,此时看到的提示信息如下,一目了然,需要我们下载安装 Visual Studio,我们按照提示,下载安装Visual Studio就行
[X] Visual Studio - develop for Windows
X Visual Studio not installed; this is necessary for Windows development.
Download at Download Visual Studio Tools - Install Free for Windows, Mac, Linux
Please install the "Desktop development with C++" workload, including all of its default components
下载安装的时候需要注意,勾选C++桌面开发,否则再次flutter doctor还是会提示Visual Studio有问题。
[☠] Connected device (the doctor check crashed)
X Due to an error, the doctor check did not complete. If the error message below is not helpful, please let us know
about this issue at https://github.com/flutter/flutter/issues.
X Exception: Unable to run "adb", check your Android SDK installation and ANDROID_SDK_ROOT environment variable:
D:\Development\Android\Sdk\platform-tools\adb.exe
安装完Visual Studio之后,再次cmd运行flutter doctor,报错信息如上,具体的截图如下:
解决:这个问题是因为连接不到我本地安装的Android Studio的虚拟机,无法启动adb.exe,百度半天没找到原因,后来发现,我电脑上的零信任环境下面正在运行Android Studio。零信任是我电脑单独分配空间安装了一个公司的虚拟机环境,做到代码物理隔绝。将零信任中的Android Studio关掉即可,上面错误就不存在了。实际上就是零信任环境运行AS占用了我们的adb资源,导致外面环境启动不了adb。
[!] Network resources
X A network error occurred while checking "Dart packages": 信号灯超时时间已到
X A network error occurred while checking "https://maven.google.com/": 信号灯超时时间已到
环境变量配置一下国内镜像,可以解决上面的问题。
FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn
PUB_HOSTED_URL=Dart packages
配置如下:
配置完之后,再去运行flutter doctor命令,
检测没什么问题了,哈哈
Visual Studio Code、Android Studio/IntelliJ IDEA、Emacs 都可以作为Flutter的开发工具,我用的是Android Studio。
Android Studio原本是无法直接选择创建flutter项目的,需要先安装插件。我们打开File>Settings>Plugins,搜索Flutter、Dart,分别安装Flutter插件和Dart插件,安装完之后重新启动Android Studio。
打开Android Studio,New>New Flutter Project...
填写好项目名称、本地路径,涉及到的平台、语言,就可以Finish去创建了,注意,这里的项目名称不可以有大写字母,Flutter不允许
搞定收工!!!!
参考网站:在 Windows 操作系统上安装和配置 Flutter 开发环境 - Flutter 中文文档 - Flutter 中文开发者网站 - Flutter