material-1.5.0-alpha03\res\values-v31\values-v31.xml:3:5-94: AAPT: error: resource android:color/system_neutral1_1000 not found
As described in the release notes: The version 1.5.0-alpha03 introduces the new Material 3 themes and Make sure to update your app’s compileSdkVersion to 31 when using this version of the library.