target 31 needed for Google Play + export

AndorsTrail/app/build.gradle

@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 31
     buildToolsVersion "30.0.3"
 
     defaultConfig {
         applicationId "com.gpl.rpg.AndorsTrail"
         minSdkVersion 14
-        targetSdkVersion 30
+        targetSdkVersion 31
     }
 
     buildTypes {

AndorsTrail/app/src/main/AndroidManifest.xml

@@ -7,11 +7,7 @@
 	android:versionName="0.8.4"
 	android:installLocation="auto"
 	>
-	<uses-sdk 
-		android:minSdkVersion="4"
-		android:targetSdkVersion="30"
-		/>
-	
+
 	<supports-screens
 		android:smallScreens="true" 
 		android:normalScreens="true"
@@ -37,6 +33,7 @@
 		>
 		<activity 
 		    android:name="com.gpl.rpg.AndorsTrail.activity.StartScreenActivity"
+			android:exported="true"
 		    android:clearTaskOnLaunch="true"
 		    >
 			<intent-filter>