报错信息：  

 解决方法：

打开build.gradle文件buildscript {ext.kotlin_version = '1.3.50'repositories {google()jcenter()maven { url "http://download.flutter.io" }}dependencies {classpath 'com.android.tools.build:gradle:3.5.0'classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"}
}allprojects {repositories {google()jcenter()maven { url "http://download.flutter.io" }}
}