Error:Failed to resolve: com.android.support:appcompat-v7:27.+

install fail就在project的gradle里面加入如下内容:
 
 
allprojects {
    repositories {
        google()
        jcenter()
        maven { url "https://maven.google.com" }
        mavenCentral()
    }
}


这块是install的通用配置,以后还会进行补充

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转载自blog.csdn.net/buyaoshitududongwo/article/details/80401676