在android中的build.gradle中添加位置服务时出现问题

Question

I want to add this google play location services in android

implementation 'com.google.android.gms:play-services-location:17.0.0'

and my support:appcompat library is

implementation 'com.android.support:appcompat-v7:27.1.1'

targetSdkVersion is 27

compileSdkVersion is 27

when try to build getting error

Android resource linking failed D:\\AndroidStudioProject\\GpsLocationApp\\app\\build\\intermediates\\incremental\\mergeDebugResources\\merged.dir\\values\\values.xml:2015: error: resource android:attr/fontVariationSettings not found.

D:\\AndroidStudioProject\\GpsLocationApp\\app\\build\\intermediates\\incremental\\mergeDebugResources\\merged.dir\\values\\values.xml:2015: error: resource android:attr/ttcIndex not found. error: failed linking references.

Answer 1

Google Play services and Firebase migrated to AndroidX in the latest release. It means that you are using both, support libraries and androidx libraries.

You can:

• migrate to androidx as described below
• downgrade your google play services dependencies (but it is not a real solution because you have to migrate before or after)

You can check the official release notes :

Warning: This release is a MAJOR version update and breaking change. The latest update to Google Play services and Firebase includes the following changes:

Migration from Android Support Libraries to Jetpack (AndroidX) Libraries. Libraries will not work unless you make the following changes in your app:

• Upgrade com.android.tools.build:gradle to v3.2.1 or later.
• Upgrade compileSdkVersion to 28 or later.
• Update your app to use Jetpack (AndroidX) ; follow the instructions in Migrating to AndroidX .

Also about the specific error described in the answer:

The error is:

AAPT: error: resource android:attr/fontVariationSettings not found.
AAPT: error: resource android:attr/ttcIndex not found

Change the compileSdkVersion to:

compileSdkVersion 28

fontVariationSettings andttcIndex were added in api level 28 .