AndroidStudio Error:Failed to resolve:

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Reference link: e rror:Failed to resolve: support:appcompat-v7 :29

Cause: Android studio updates the SDK version to the latest version

Error: failed to resolve: support:appcompat-v7 :29

Analysis: the version of Android SDK tools under sdkmanager is 26.1.1

Solution: modify the build. Gradle file in the app directory

  1.compileSdkVersion 29 -> compileSdkVersion 26

  2.targetSdkVersion 26 -> targetSdkVersion 26 support:appcompat-v7 :29.+ -> support:appcompat-v7 :26.+

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