Unable to resolve dependency for ':app@debug/compileClasspath': Could not find any version that matc
错误展示：
错误提示：
Unable to resolve dependency for ':app@debug/compileClasspath': Could not find any version that matches com.android.support:appcompat-v7:29.+.
Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not find any version that matches com.android.support:appcompat-v7:29.+.
Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not find any version that matches com.android.support:appcompat-v7:29.+.错误信息:
解决办法：
因为提示：com.android.support:appcompat-v7:29.+ 没有；
打开 build.gradle 》》
将
implementation 'com.android.support:appcompat-v7:29.+'
替换为
implementation 'com.android.support:appcompat-v7:28.0.0-rc01'
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