Android Studio找不到与com.android.support:appcompat-v7:+匹配的任何版本

Question

在Android Studio中运行项目失败,并显示以下错误: could not find any version that matches com.android.support:appcompat-v7:+

我该如何解决这个错误？

Answer 1

从Android Studio转到:工具>> Android >> SDK Manager

选择并安装"Extras | Android Support Repository"

Answer 2

In Project > app > build.gradle file replace the line

implementation 'com.android.support:appcompat-v7:+'29.+'

with

implementation 'com.android.support:appcompat-v7:+'

and line

implementation 'com.android.support:design:29.+'

with

implementation 'com.android.support:design:+'

Then clean build

Answer 3

 android list sdk

 android update sdk --no-ui --filter extra

Answer 4

对我来说，它在将版本从7：27. +更改为7：+后起作用了

Answer 5

这很简单。请更新并替换 build.gradle(Project :App Name) 中的以下代码。

allprojects {
    repositories {
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}