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I have been coding in Android Studio using Firebase as my Database. The app works fine for a certain period of time, but crashes later on.

PROJECT LEVEL GRADLE FILE

buildscript {



    repositories {

        google()

        jcenter()

    }

    dependencies {

        classpath 'com.android.tools.build:gradle:3.2.1'

        classpath 'com.google.gms:google-services:4.2.0'



        // NOTE: Do not place your application dependencies here; they belong

        // in the individual module build.gradle files

    }

}



allprojects {

    repositories {

        google()

        jcenter()

        maven { url "https://jitpack.io" }

    }

}



task clean(type: Delete) {

    delete rootProject.buildDir

}

APP LEVEL GRADLE FILE

apply plugin: 'com.android.application'



android {

    compileSdkVersion 28

    defaultConfig {

        applicationId "com.example.admin.firstapp"

        minSdkVersion 16

        targetSdkVersion 28

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

        multiDexEnabled true



    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

        }

    }

}

dependencies {

    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'com.android.support:appcompat-v7:28.0.0'

    implementation 'com.android.support:design:28.0.0'

    implementation 'com.android.support.constraint:constraint-layout:1.1.3'

    implementation 'com.android.support:design:28.0.0'

    implementation 'com.android.support:support-v4:28.0.0'

    implementation 'com.android.support:support-annotations:28.0.0'



    testImplementation 'junit:junit:4.12'

    androidTestImplementation 'com.android.support.test:runner:1.0.2'

    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'



    implementation 'de.hdodenhof:circleimageview:2.2.0'

    api 'com.theartofdev.edmodo:android-image-cropper:2.7.+'



    implementation 'com.android.support:multidex:1.0.3'



    implementation 'com.github.bumptech.glide:glide:4.8.0'

    annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'

    implementation 'com.google.android.gms:play-services-maps:16.0.0'



    implementation 'com.google.firebase:firebase-core:16.0.1'

    implementation 'com.google.firebase:firebase-database:16.0.1'

    implementation 'com.google.firebase:firebase-storage:16.0.1'

    implementation 'com.google.firebase:firebase-messaging:17.3.4'

    implementation 'com.google.firebase:firebase-firestore:17.1.5'

    implementation 'com.google.firebase:firebase-auth:16.0.1'

    implementation 'com.google.firebase:firebase-crash:16.0.1'

    implementation 'com.firebaseui:firebase-ui-storage:4.1.0'

    implementation 'com.firebaseui:firebase-ui-database:4.1.0'



    implementation 'com.github.jakebonk:NotifyMe:1.0.0'

    implementation 'com.github.MAXDeliveryNG:slideview:1.1.0'



}

apply plugin: 'com.google.gms.google-services'

com.google.gms.googleservices.GoogleServicesPlugin.config.disableVersionCheck = true

ERROR

E/AndroidRuntime: FATAL EXCEPTION: TokenRefresher

    Process: com.example.admin.firstapp, PID: 13467

    java.lang.NoSuchFieldError: No field PREFER_HIGHEST_OR_REMOTE_VERSION_NO_FORCE_STAGING of type Lcom/google/android/gms/dynamite/DynamiteModule$VersionPolicy; in class Lcom/google/android/gms/dynamite/DynamiteModule; or its superclasses (declaration of 'com.google.android.gms.dynamite.DynamiteModule' appears in /data/app/com.example.admin.firestapp-hfO7_xvBp7yTRBLG4jEOKg==/split_lib_dependencies_apk.apk)

        at com.google.android.gms.flags.FlagValueProvider.initialize(Unknown Source:7)

        at com.google.android.gms.flags.FlagRegistry.initialize(Unknown Source:4)

        at com.google.firebase.auth.internal.zzx.initialize(Unknown Source:3)

        at com.google.firebase.auth.internal.zzt.run(Unknown Source:14)

        at android.os.Handler.handleCallback(Handler.java:873)

        at android.os.Handler.dispatchMessage(Handler.java:99)

        at android.os.Looper.loop(Looper.java:193)

        at android.os.HandlerThread.run(HandlerThread.java:65)

E/UncaughtException: java.lang.NoSuchFieldError: No field PREFER_HIGHEST_OR_REMOTE_VERSION_NO_FORCE_STAGING of type Lcom/google/android/gms/dynamite/DynamiteModule$VersionPolicy; in class Lcom/google/android/gms/dynamite/DynamiteModule; or its superclasses (declaration of 'com.google.android.gms.dynamite.DynamiteModule' appears in /data/app/com.example.admin.firstapp-hfO7_xvBp7yTRBLG4jEOKg==/split_lib_dependencies_apk.apk)

        at com.google.android.gms.flags.FlagValueProvider.initialize(Unknown Source:7)

        at com.google.android.gms.flags.FlagRegistry.initialize(Unknown Source:4)

        at com.google.firebase.auth.internal.zzx.initialize(Unknown Source:3)

        at com.google.firebase.auth.internal.zzt.run(Unknown Source:14)

        at android.os.Handler.handleCallback(Handler.java:873)

        at android.os.Handler.dispatchMessage(Handler.java:99)

        at android.os.Looper.loop(Looper.java:193)

        at android.os.HandlerThread.run(HandlerThread.java:65)

The app crashes after about 15/20 mins of inactivity. It doesn't go to fragments or activities which involve firebase.

CODE THAT PRODUCES THE ERROR

public class ViewBankProfile extends AppCompatActivity {



    private ImageButton editPic, cancel, confirmupdate;

    private EditText bankname, description, contact, website;

    private TextView bankusername;

    private DatabaseReference mDatabase;

    private String username;

    private Button update;

    private CircleImageView bankProfileImage;

    private static final int GalleryPicK = 1;

    private StorageReference bankProfileImageRef;

    private ProgressDialog loadingbar;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_view_bank_profile);



        bankusername = findViewById(R.id.view_bank_user_name);

        bankname = findViewById(R.id.edit_bank_name);

        description = findViewById(R.id.edit_bio);

        website = findViewById(R.id.edit_website);

        contact = findViewById(R.id.edit_bank_contact_no);

        cancel = findViewById(R.id.cancel_edit_bank_profile);

        confirmupdate = findViewById(R.id.confirm_edit_bank_profile);

        update = findViewById(R.id.update_bank_profile);

        bankProfileImage = findViewById(R.id.view_profile_pic);

        editPic = findViewById(R.id.edit_profile_pic);

        bankProfileImageRef = FirebaseStorage.getInstance().getReference().child("Bank Images");

        loadingbar = new ProgressDialog(this);



        SharedPreferences sharedPreferences = getSharedPreferences("BankData", Context.MODE_PRIVATE);

        username = sharedPreferences.getString("UserName", "UserName");



        if (!username.equals("UserName")) {



            mDatabase = FirebaseDatabase.getInstance().getReference().child("Banks").child(username);

        }



        Toolbar profileToolbar = findViewById(R.id.profile_toolbar);

        profileToolbar.setTitle("");

        setSupportActionBar(profileToolbar);



        editPic = findViewById(R.id.edit_profile_pic);



        bankProfileImage.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent intent = new Intent(Intent.ACTION_GET_CONTENT);

                intent.setType("image/*");

                startActivityForResult(intent,GalleryPicK);

            }

        });



        editPic.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent intent = new Intent(Intent.ACTION_GET_CONTENT);

                intent.setType("image/*");

                startActivityForResult(intent,GalleryPicK);

            }

        });



        update.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                updatebankprofile();

            }

        });



        confirmupdate.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                updatebankprofile();

            }

        });



        cancel.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent intent = new Intent(getApplication(), BankActivity.class);

                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

                startActivity(intent);

            }

        });

    }



    @Override

    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {

        super.onActivityResult(requestCode, resultCode, data);



        final SharedPreferences sharedPreferences = getSharedPreferences("BankData", Context.MODE_PRIVATE);

        if (requestCode == GalleryPicK && resultCode == RESULT_OK && data != null) {



            CropImage.activity()

                    .setGuidelines(CropImageView.Guidelines.ON)

                    .setAspectRatio(1, 1)

                    .start(this);



        }



        if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {

            final CropImage.ActivityResult result = CropImage.getActivityResult(data);

            if(resultCode==RESULT_OK)

            {

                loadingbar.setTitle("Uploading");

                loadingbar.setMessage("Please wait while your profile Image is Uploading...");

                loadingbar.show();

                final Uri resultUri = result.getUri();

                final StorageReference filepath = bankProfileImageRef.child(username + ".jpg");

                filepath.putFile(resultUri).addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {

                    @Override

                    public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {

                        if(task.isSuccessful()){

                            Toast.makeText(getApplication(),"Profile Image Uploaded",Toast.LENGTH_SHORT).show();

                            try {

                                Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), result.getUri());

                                String path = saveToInternalStorage(bitmap);

                                loadImageFromStorage(path);

                                SharedPreferences.Editor save = sharedPreferences.edit();

                                save.putString("Image",path);

                                save.apply();

                            } catch (IOException e) {

                                e.printStackTrace();

                            }



                            loadingbar.dismiss();

                        }

                        else

                        {

                            String message = task.getException().toString();

                            Toast.makeText(getApplication(),"Error: "+message,Toast.LENGTH_LONG).show();

                            loadingbar.dismiss();

                        }

                    }

                });

            }

        }

    }



    @Override

    protected void onStart() {

        super.onStart();



        SharedPreferences sharedPreferences = getSharedPreferences("BankData", Context.MODE_PRIVATE);



        String name = sharedPreferences.getString("Name", "Name");

        String username = sharedPreferences.getString("UserName", "UserName");

        String con = sharedPreferences.getString("Contact", "Contact");

        String des = sharedPreferences.getString("Description", "Enter Information about the bank");

        String web = sharedPreferences.getString("Website", "Website");

        String path = sharedPreferences.getString("Image","N/A");



        if(!path.equals("N/A"))

        {

            loadImageFromStorage(path);

        }



        bankusername.setText(username);

        bankname.setText(name);

        description.setText(des);

        website.setText(web);

        contact.setText(con);



    }



    private void updatebankprofile() {



        SharedPreferences sharedPreferences = getSharedPreferences("BankData", Context.MODE_PRIVATE);



        String name = bankname.getText().toString().trim();

        String con = contact.getText().toString().trim();

        String des = description.getText().toString().trim();

        String web = website.getText().toString().trim();



        HashMap<String, Object> update = new HashMap<>();

        update.put("Name", name);

        update.put("Contact", con);

        update.put("Description", des);

        update.put("Website", web);

        mDatabase.updateChildren(update);



        SharedPreferences.Editor save = sharedPreferences.edit();



        save.putString("Name", name);

        save.putString("Description", des);

        save.putString("Contact", con);

        save.putString("Website",web);

        save.apply();



        Intent intent = new Intent(getApplication(), BankActivity.class);

        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        startActivity(intent);



    }



    private String saveToInternalStorage(Bitmap bitmap){

        ContextWrapper cw = new ContextWrapper(getApplicationContext());

        // path to /data/data/yourapp/app_data/imageDir

        File directory = cw.getDir("imageDir", Context.MODE_PRIVATE);

        // Create imageDir

        File mypath=new File(directory,"profile.jpg");



        FileOutputStream fos = null;

        try {

            fos = new FileOutputStream(mypath);

            // Use the compress method on the BitMap object to write image to the OutputStream

            bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);

        } catch (Exception e) {

            e.printStackTrace();

        } finally {

            try {

                fos.close();

            } catch (IOException e) {

                e.printStackTrace();

            }

        }

        return directory.getAbsolutePath();

    }



    private void loadImageFromStorage(String path)

    {



        try {

            File f=new File(path, "profile.jpg");

            Bitmap b = BitmapFactory.decodeStream(new FileInputStream(f));

            CircleImageView img=(CircleImageView) findViewById(R.id.view_profile_pic);

            img.setImageBitmap(b);

        }

        catch (FileNotFoundException e)

        {

            e.printStackTrace();

        }

    }



    @Override

    public void onBackPressed() {

        super.onBackPressed();

        Intent intent = new Intent(getApplication(), BankActivity.class);

        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        startActivity(intent);

    }

}

I have added one java code, however this error is produced wherever firebase Database is involved.