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问题

Android Studio3.3.2编译时报错:

ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Could not find any version that matches com.android.support:appcompat-v7:30.+.
Show Details
Affected Modules: app


ERROR: Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not find any version that matches com.android.support:appcompat-v7:30.+.
Show Details
Affected Modules: app


ERROR: Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not find any version that matches com.android.support:appcompat-v7:30.+.
Show Details
Affected Modules: app

解决

clearn project

bulid —> clearn project 一般可以解决大部分问题。

清除缓存并重启

若还是不行可以尝试 File -> Invalidate Caches / Restart -> Invalidate and Restart,该方法会清理缓存并重启Android Studio。

更改appcompat版本

还还还是不行,可以尝试更改appcompat版本

更改前appcompat版本:

更改后appcompat版本:

亲测问题解决

本文标签: 解决办法ResolveunableErrorDependency