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Information:Gradle tasks [:app:generateDebugSources, :app:generateDebugAndroidTestSources, :app:mockableAndroidJar, :app:prepareDebugUnitTestDependencies]
C:\Users\User\Documents\Signos\app\src\main\res\layout\activity_main.xml
Error:(9) No resource identifier found for attribute ‘layout_constraintBottom_toBottomOf’ in package 'com.example.casa.signos’
Error:(9) No resource identifier found for attribute ‘layout_constraintLeft_toLeftOf’ in package 'com.example.casa.signos’
Error:(9) No resource identifier found for attribute ‘layout_constraintRight_toRightOf’ in package 'com.example.casa.signos’
Error:(9) No resource identifier found for attribute ‘layout_constraintTop_toTopOf’ in package 'com.example.casa.signos’
C:\Users\User\Documents\Signos\app\build\intermediates\res\merged\debug\layout\activity_main.xml
Error:(9) No resource identifier found for attribute ‘layout_constraintBottom_toBottomOf’ in package 'com.example.casa.signos’
Error:(9) No resource identifier found for attribute ‘layout_constraintLeft_toLeftOf’ in package 'com.example.casa.signos’
Error:(9) No resource identifier found for attribute ‘layout_constraintRight_toRightOf’ in package 'com.example.casa.signos’
Error:(9) No resource identifier found for attribute ‘layout_constraintTop_toTopOf’ in package 'com.example.casa.signos’
Error:Execution failed for task ‘:app:processDebugResources’.
com.android.ide.common.process.ProcessException: Failed to execute aapt
Information:BUILD FAILED
Information:Total time: 1 mins 49.746 secs
Information:9 errors
Information:0 warnings
Information:See complete output in console