[移动开发]Flutter插件Plugin.kt文件无法识别flutter库报红

1.问题：最近要使用Flutter插件，但是AS的尿性，插件模块自带的xxxxPlugin.kt打开后就报红，出现无法识别flutter中带的各种类，使用Android模式打开也是如此。
2.解决如下：
(1)在local.properties文件中添加你的flutter sdk目录：

flutter.sdk=F:\\flutter\\flutter

（2）在build.gradle文件中添加：

//最外层
def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}
//获取flutter的sdk路径
def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

//dependencies 中
    compileOnly files("$flutterRoot/bin/cache/artifacts/engine/android-arm/flutter.jar")
    compileOnly 'androidx.annotation:annotation:1.1.0'

（3）syn gradle