Android Studio 不显示真机连接 Android license status unknown
CMD 命令下执行Flutter doctor 出现 Android license status unknown 提示,缺少Android证书
在CMD命令下执行 flutter doctor --android-licenses 这一步需要翻墙，
Android sdk location should not contain whitespace
该错误提示很简单，Android SDK位置不应该包含空格，找到SDK所在目录，把目录中的空格去掉即可；
Flutter upgrade 特别慢
变量名: PUB_HOSTED_URL 变量值: https://pub.flutter-io.cn
变量名: FLUTTER_STORAGE_BASE_URL 变量值: https://storage.flutter-io.cn
Windows配置以上环境变量，配置以下两个变量值后重启电脑生效
重启电脑后CMD进入Flutter目录，执行flutter upgrade
创建Android 模拟器
This computer does not support Intel Virtualization Technology (VT-x) or it is being exclusively used by Hyper-V. HAXM cannot be installed.
Please ensure Hyper-V is disabled in Windows Features, or refer to the Intel HAXM documentation for more information.
解决在windows设置里搜索windows功能，停用Hyper-V。然后重启电脑。
Navigator operation requested with a context that does not include a Navigat
参考网站：blog.csdn.net/u013066292/…
Initializing gradle...
参照
www.jianshu.com/p/190647d13…
www.jianshu.com/p/407d3ca70…
修改flutter sdk中的gradle配置文件
D:\Tools\flutter\packages\flutter_tools\gradle
repositories {
maven { url 'https://maven.aliyun.com/repository/google' }
maven { url 'https://maven.aliyun.com/repository/jcenter' }
maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
}
修改gralde默认版本
默认distributionUrl是4.10，至少要4.6以上的版本
#D:\Tools\flutter\packages\flutter_tools\templates\app\android.tmpl\gradle\wrapper\gradle-wrapper.properties
#Fri Jun 23 08:50:38 CEST 2017
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https://services.gradle.org/distributions/gradle-4.6-all.zip
