Android studio:Configure Project in android studio

Question

Executing tasks: [:app:assembleDebug] in project C:\Users\Zebranic\AndroidStudioProjects\Atoz

Configure project :app registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection) registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)

Task :app:preBuild UP-TO-DATE Task :app:preDebugBuild UP-TO-DATE Task :app:checkDebugManifest Task :app:compileDebugAidl NO-SOURCE Task :app:compileDebugRenderscript NO-SOURCE Task :app:generateDebugBuildConfig Task :app:mainApkListPersistenceDebug Task :app:generateDebugResValues Task :app:generateDebugResources Task :app:writeDebugApplicationId

Task :app:processDebugGoogleServices Parsing json file: C:\Users\Zebranic\AndroidStudioProjects\Atoz\app\google-services.json

Task :app:javaPreCompileDebug Task :app:createDebugCompatibleScreenManifests

Task :app:processDebugManifest C:\Users\Zebranic\AndroidStudioProjects\Atoz\app\src\main\AndroidManifest.xml:24:9-31:50 Warning: activity#com.google.firebase.auth.internal.FederatedSignInActivity@android:launchMode was tagged at AndroidManifest.xml:24 to replace other declarations but no other declaration present

Task :app:mergeDebugShaders Task :app:compileDebugShaders Task :app:generateDebugAssets Task :app:mergeDebugAssets Task :app:mergeDebugResources

Task :app:processDebugResources FAILED AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{"file":"C:\Users\Zebranic\AndroidStudioProjects\Atoz\app\src\main\res\drawable\btntrail.xml"}],"original":"C:\Users\Zebranic\AndroidStudioProjects\Atoz\app\src\main\res\drawable\btntrail.xml: AAPT: error: elements require a sdk version of at least 26.\n ","tool":"AAPT"}

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':app:processDebugResources'.

  A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade Android resource linking failed C:\Users\Zebranic\AndroidStudioProjects\Atoz\app\src\main\res\drawable\btntrail.xml: AAPT: error: elements require a sdk version of at least 26.

• Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 12s 14 actionable tasks: 14 executed

Answer 1

AAPT: error: elements require a sdk version of at least 26.\n ","tool":"AAPT"

Try Updating SDK version.

Settings->System Settings->Android SDK->SDK Tools

Check Android SDK Tools 26.1.1

At least v26 is to be installed or higher.