记录问题：
引用自:https://blog.csdn.net/jahonn/article/details/80639576
将Project的build.gradle文件中的google()挪到jcenter()上面一行就可以了
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.0'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
