[ANDROID] Not working when following the instructions + SOLUTION

Your Environment

• Plugin version:
• Platform: Android
• OS version: 10.0
• Device manufacturer and model: Doesn’t matter

• Running in Simulator: Yes
• React Native version: 0.61.5
• Plugin configuration options: 0.6.3
• Link to your project: Nope

Context

Not working on android after following the instructions, ie :

• Add the library with yarn add @mauron85/react-native-background-geolocation
• Launch the script using node ./node_modules/@mauron85/react-native-background-geolocation/scripts/postlink.js

Expected Behavior

The app is now able to use background geolocation and build correctly and not crash

Actual Behavior

Build fails.

Possible Fix

I think jetifier was not picking up the common module. So I migrated everything to androidx using Android Studio. And also in the file VERSION.gradle there was an issue with getApplicationId that I fixed too. You can use the package patch-package. And then apply this patch patches/@mauron85+react-native-background-geolocation+0.6.3.patch :

diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/VERSIONS.gradle b/node_modules/@mauron85/react-native-background-geolocation/android/common/VERSIONS.gradle
index 61f0865..17a0623 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/VERSIONS.gradle
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/VERSIONS.gradle
@@ -21,11 +21,11 @@ def RESOURCE_PREFIX = "mauron85_bgloc_"
 ext {
     getApplicationId = { ->
         def applicationId = "com.marianhello.app"
-        if (findProject('..:app') != null) {
-            applicationId = project('..:app').android.defaultConfig.applicationId
-        } else if (findProject(':app') != null) {
-            applicationId = project(':app').android.defaultConfig.applicationId
-        }
+        // if (findProject('..:app') != null) {
+        //     applicationId = project('..:app').android.defaultConfig.applicationId
+        // } else if (findProject(':app') != null) {
+        //     applicationId = project(':app').android.defaultConfig.applicationId
+        // }
         if (rootProject.hasProperty('applicationId')) {
             applicationId = rootProject.applicationId
         }
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/build.gradle b/node_modules/@mauron85/react-native-background-geolocation/android/common/build.gradle
index 98542b1..07961e8 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/build.gradle
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/build.gradle
@@ -64,7 +64,7 @@ android {
         resValue "string", resourcePrefix + "account_name", 'Locations'
         resValue "string", resourcePrefix + "account_type", accountPrefix + '.account'
         resValue "string", resourcePrefix + "content_authority", accountPrefix + '.provider'
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         minSdkVersion project.ext.getMinSdkVersion()
         versionCode 1
         versionName "1.0"
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/BackgroundGeolocationFacadeTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/BackgroundGeolocationFacadeTest.java
index 24fc246..3de1756 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/BackgroundGeolocationFacadeTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/BackgroundGeolocationFacadeTest.java
@@ -1,7 +1,7 @@
 package com.marianhello.bgloc;
 
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 
 import com.marianhello.bgloc.data.BackgroundLocation;
 import com.marianhello.bgloc.provider.TestLocationProviderFactory;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/BatchManagerTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/BatchManagerTest.java
index 33e5c69..cd1439d 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/BatchManagerTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/BatchManagerTest.java
@@ -2,9 +2,9 @@ package com.marianhello.bgloc;
 
 import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
 import android.util.JsonReader;
 import android.util.JsonToken;
 
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/ContentProviderLocationDAOTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/ContentProviderLocationDAOTest.java
index a255b87..e7aaec7 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/ContentProviderLocationDAOTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/ContentProviderLocationDAOTest.java
@@ -16,7 +16,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
 
-import static android.support.test.InstrumentationRegistry.getContext;
+import static androidx.test.platform.app.InstrumentationRegistry.getContext;
 import static com.marianhello.bgloc.data.sqlite.SQLiteLocationContract.LocationEntry.SQL_DROP_LOCATION_TABLE;
 import static junit.framework.Assert.assertEquals;
 
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/DBLogReaderTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/DBLogReaderTest.java
index 27c27c9..026a547 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/DBLogReaderTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/DBLogReaderTest.java
@@ -1,9 +1,9 @@
 package com.marianhello.bgloc;
 
 import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
 
 import com.marianhello.logging.DBLogReader;
 import com.marianhello.logging.LogEntry;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/LocationServiceProxyTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/LocationServiceProxyTest.java
index 01c5271..ceaad33 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/LocationServiceProxyTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/LocationServiceProxyTest.java
@@ -6,20 +6,17 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.Bundle;
 import android.os.IBinder;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.rule.ServiceTestRule;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.rule.ServiceTestRule;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 
 import com.marianhello.bgloc.provider.TestLocationProviderFactory;
 import com.marianhello.bgloc.service.LocationServiceImpl;
-import com.marianhello.bgloc.service.LocationServiceIntentBuilder;
 import com.marianhello.bgloc.service.LocationServiceProxy;
 
 import org.junit.After;
-import org.junit.AfterClass;
 import org.junit.Before;
-import org.junit.BeforeClass;
 import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/LocationServiceTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/LocationServiceTest.java
index 6698819..dee5233 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/LocationServiceTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/LocationServiceTest.java
@@ -7,12 +7,12 @@ import android.content.IntentFilter;
 import android.location.Location;
 import android.os.Bundle;
 import android.os.IBinder;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.rule.ServiceTestRule;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.rule.ServiceTestRule;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 
 import com.marianhello.bgloc.data.BackgroundLocation;
 import com.marianhello.bgloc.provider.MockLocationProvider;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteConfigurationDAOTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteConfigurationDAOTest.java
index 2257931..d5b3bb6 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteConfigurationDAOTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteConfigurationDAOTest.java
@@ -3,11 +3,10 @@ package com.marianhello.bgloc;
 import android.content.Context;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
 
-import com.marianhello.bgloc.Config;
 import com.marianhello.bgloc.data.HashMapLocationTemplate;
 import com.marianhello.bgloc.data.LocationTemplate;
 import com.marianhello.bgloc.data.LocationTemplateFactory;
@@ -24,7 +23,6 @@ import org.junit.runner.RunWith;
 
 import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.LinkedHashSet;
 
 /**
  * Created by finch on 13/07/16.
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteLocationDAOTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteLocationDAOTest.java
index 3c8ff11..92bb501 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteLocationDAOTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteLocationDAOTest.java
@@ -3,9 +3,9 @@ package com.marianhello.bgloc;
 import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
 import android.location.Location;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
 
 import com.marianhello.bgloc.data.BackgroundLocation;
 import com.marianhello.bgloc.data.sqlite.SQLiteLocationDAO;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteLocationDAOThreadTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteLocationDAOThreadTest.java
index 32b9b7b..eccc276 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteLocationDAOThreadTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteLocationDAOThreadTest.java
@@ -3,9 +3,9 @@ package com.marianhello.bgloc;
 import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
 import android.location.Location;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
 
 import com.marianhello.bgloc.data.BackgroundLocation;
 import com.marianhello.bgloc.data.sqlite.SQLiteLocationDAO;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteOpenHelperTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteOpenHelperTest.java
index 169c6c4..d5efa03 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteOpenHelperTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/androidTest/java/com/marianhello/bgloc/SQLiteOpenHelperTest.java
@@ -5,9 +5,9 @@ import android.content.Context;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.location.Location;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
 
 import com.marianhello.bgloc.data.BackgroundLocation;
 import com.marianhello.bgloc.data.sqlite.SQLiteConfigurationContract;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/BackgroundGeolocationFacade.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/BackgroundGeolocationFacade.java
index a8c755f..e428e3a 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/BackgroundGeolocationFacade.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/BackgroundGeolocationFacade.java
@@ -14,8 +14,8 @@ import android.os.Build;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.provider.Settings.SettingNotFoundException;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.core.content.ContextCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.text.TextUtils;
 
 import com.github.jparkie.promise.Promise;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/Config.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/Config.java
index db809d0..09a6432 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/Config.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/Config.java
@@ -12,7 +12,7 @@ package com.marianhello.bgloc;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 
 import com.marianhello.bgloc.data.AbstractLocationTemplate;
 import com.marianhello.bgloc.data.LocationTemplate;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/data/BackgroundLocation.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/data/BackgroundLocation.java
index f41b12a..9d2e7ce 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/data/BackgroundLocation.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/data/BackgroundLocation.java
@@ -7,9 +7,8 @@ import android.os.Build;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
-import android.support.v4.util.TimeUtils;
+import androidx.core.util.TimeUtils;
 
-import com.marianhello.bgloc.data.sqlite.SQLiteLocationContract;
 import com.marianhello.bgloc.data.sqlite.SQLiteLocationContract.LocationEntry;
 
 import org.json.JSONException;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/data/LocationTransform.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/data/LocationTransform.java
index 3e3b65c..41e2002 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/data/LocationTransform.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/data/LocationTransform.java
@@ -1,10 +1,8 @@
 package com.marianhello.bgloc.data;
 
 import android.content.Context;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-
-import com.marianhello.bgloc.data.BackgroundLocation;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
 public interface LocationTransform
 {
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceImpl.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceImpl.java
index 18f1ba1..8f40b37 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceImpl.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceImpl.java
@@ -29,8 +29,8 @@ import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
 import android.os.Process;
-import android.support.annotation.Nullable;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.annotation.Nullable;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 
 import com.marianhello.bgloc.Config;
 import com.marianhello.bgloc.ConnectivityListener;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceIntentBuilder.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceIntentBuilder.java
index fd0b99e..3d95eba 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceIntentBuilder.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceIntentBuilder.java
@@ -21,7 +21,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.Parcelable;
-import android.support.annotation.IntDef;
+import androidx.annotation.IntDef;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/sync/NotificationHelper.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/sync/NotificationHelper.java
index 9be9687..0959766 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/sync/NotificationHelper.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/sync/NotificationHelper.java
@@ -9,8 +9,8 @@ import android.content.Intent;
 import android.graphics.BitmapFactory;
 import android.graphics.Color;
 import android.os.Build;
-import android.support.annotation.RequiresApi;
-import android.support.v4.app.NotificationCompat;
+import androidx.annotation.RequiresApi;
+import androidx.core.app.NotificationCompat;
 
 import com.marianhello.bgloc.ResourceResolver;
 import com.marianhello.logging.LoggerManager;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/sync/SyncAdapter.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/sync/SyncAdapter.java
index 9c713e9..c2fe392 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/sync/SyncAdapter.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/main/java/com/marianhello/bgloc/sync/SyncAdapter.java
@@ -11,8 +11,8 @@ import android.content.SyncResult;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
-import android.support.v4.app.NotificationCompat;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.core.app.NotificationCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 
 import com.marianhello.bgloc.Config;
 import com.marianhello.bgloc.HttpPostService;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/BackgroundLocationTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/BackgroundLocationTest.java
index 145816a..35ffe15 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/BackgroundLocationTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/BackgroundLocationTest.java
@@ -1,7 +1,7 @@
 package com.marianhello.backgroundgeolocation;
 
 import android.os.Build;
-import android.support.test.filters.SmallTest;
+import androidx.test.filters.SmallTest;
 
 import com.marianhello.bgloc.data.BackgroundLocation;
 
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/ConfigTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/ConfigTest.java
index 01ee7f9..80ab3d8 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/ConfigTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/ConfigTest.java
@@ -1,6 +1,6 @@
 package com.marianhello.backgroundgeolocation;
 
-import android.support.test.filters.SmallTest;
+import androidx.test.filters.SmallTest;
 
 import com.marianhello.bgloc.Config;
 import com.marianhello.bgloc.data.ArrayListLocationTemplate;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/DBLogReaderTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/DBLogReaderTest.java
index 39e3d3e..6072a6f 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/DBLogReaderTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/common/src/test/java/com/marianhello/backgroundgeolocation/DBLogReaderTest.java
@@ -1,6 +1,6 @@
 package com.marianhello.backgroundgeolocation;
 
-import android.support.test.filters.SmallTest;
+import androidx.test.filters.SmallTest;
 
 import com.marianhello.logging.DBLogReader;
 
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/gradle.properties b/node_modules/@mauron85/react-native-background-geolocation/android/gradle.properties
index 89e0d99..915f0e6 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/gradle.properties
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/gradle.properties
@@ -16,3 +16,5 @@
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
+android.enableJetifier=true
+android.useAndroidX=true
\ No newline at end of file
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/lib/build.gradle b/node_modules/@mauron85/react-native-background-geolocation/android/lib/build.gradle
index 3a8b36c..32c46bc 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/lib/build.gradle
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/lib/build.gradle
@@ -69,7 +69,7 @@ android {
     useLibrary 'android.test.mock'
 
     defaultConfig {
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         minSdkVersion project.ext.getMinSdkVersion()
         targetSdkVersion project.ext.getTargetSdkVersion()
         versionCode 1 // intentionally not updating version as we're not uploading to any java repository
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/lib/src/androidTest/java/com/marianhello/bgloc/react/ConfigMapperTest.java b/node_modules/@mauron85/react-native-background-geolocation/android/lib/src/androidTest/java/com/marianhello/bgloc/react/ConfigMapperTest.java
index 44682bc..48b1676 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/lib/src/androidTest/java/com/marianhello/bgloc/react/ConfigMapperTest.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/lib/src/androidTest/java/com/marianhello/bgloc/react/ConfigMapperTest.java
@@ -1,9 +1,9 @@
 package com.marianhello.bgloc.react;
 
 import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-import android.support.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
 
 import com.facebook.react.bridge.Arguments;
 import com.facebook.react.bridge.ReadableMap;
diff --git a/node_modules/@mauron85/react-native-background-geolocation/android/lib/src/main/java/com/marianhello/bgloc/react/headless/HeadlessService.java b/node_modules/@mauron85/react-native-background-geolocation/android/lib/src/main/java/com/marianhello/bgloc/react/headless/HeadlessService.java
index 50a31b4..298f6fb 100644
--- a/node_modules/@mauron85/react-native-background-geolocation/android/lib/src/main/java/com/marianhello/bgloc/react/headless/HeadlessService.java
+++ b/node_modules/@mauron85/react-native-background-geolocation/android/lib/src/main/java/com/marianhello/bgloc/react/headless/HeadlessService.java
@@ -2,7 +2,7 @@ package com.marianhello.bgloc.react.headless;
 
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 
 import com.facebook.react.HeadlessJsTaskService;
 import com.facebook.react.bridge.Arguments;

Steps to Reproduce

1. New react native project
2. Install the library using instructions
3. Cry
4. Apply my patch and rejoice

Context

Add background geolocation to my app.

Debug logs

[igor-nm]

I could solve it just putting a couple point before :app to reference: File: VERSIONS.gradle Lines: 26 and 27. Before (doesn’t work):

else if (findProject(':app') != null) {
            applicationId = project(':app').android.defaultConfig.applicationId

After: (it’s work)

else if (findProject('..:app') != null) {
            applicationId = project('..:app').android.defaultConfig.applicationId

[Daavidaviid]

I made 2 PR, one concerning the main repo and the other one the submodule. Main : https://github.com/mauron85/react-native-background-geolocation/pull/471 Sub : https://github.com/mauron85/background-geolocation-android/pull/42