安卓工作室错误 - 缺少类文件

Question

我正在开发一个应用程序，不久前它仍在工作并且构建得很好，但是经过几分钟的编码，我尝试再次构建，然后出现了错误：

"错误：无法访问 com.google.android.gms.internal.zzbck 的 zzbck 类文件，找不到">

法典：

package com.lrtapp.ardentmap;
import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.media.Image;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.gcm.Task;
import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.tasks.OnCompleteListener;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
public class MapActivity extends AppCompatActivity implements OnMapReadyCallback {
@Override
public void onMapReady(GoogleMap googleMap) {
Toast.makeText(this, "map is ready", Toast.LENGTH_SHORT).show();
Log.d(TAG, "onMapReady: map is ready");
mMap = googleMap;
if (mLocationPermissionGranted) {
getDeviceLocation();
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
mMap.setMyLocationEnabled(true);
mMap.getUiSettings().setMyLocationButtonEnabled(false);
init();
}
}
private static final String TAG = "MapActivity";
private static final String FINE_LOCATION = Manifest.permission.ACCESS_FINE_LOCATION;
private static final String COURSE_LOCATION = Manifest.permission.ACCESS_COARSE_LOCATION;
private static final int LOCATION_PERMISSION_REQUEST_CODE = 1234;
private static final float DEFAULT_ZOOM = 15f;
//widgets
private EditText mSearchText;
private ImageView mGps;
//vars
private boolean mLocationPermissionGranted = false;
private GoogleMap mMap;
private FusedLocationProviderClient mFusedLocationProviderClient;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
mSearchText = (EditText) findViewById(R.id.input_search);
mGps = (ImageView) findViewById(R.id.ic_gps);
getLocationPermission();
}
private void init(){
Log.d(TAG, "init: Initializing");
mSearchText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView textView, int actionId, KeyEvent keyEvent) {
if (actionId == EditorInfo.IME_ACTION_SEARCH
|| actionId == EditorInfo.IME_ACTION_DONE
||  keyEvent.getAction() == keyEvent.ACTION_DOWN
|| keyEvent.getAction() == keyEvent.KEYCODE_ENTER){
//execute method for searching
geoLocate();
}
return false;
}
});
mGps.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d(TAG, "onClick: clicked gps icon");
getDeviceLocation();
}
});
hideSoftKeyboard();
}
private void geoLocate(){
Log.d(TAG, "geoLocate: geolocating");
String searchString = mSearchText.getText().toString();
Geocoder geocoder = new Geocoder(MapActivity.this);
List<Address> list = new ArrayList<>();
try{
list = geocoder.getFromLocationName(searchString, 1);
}catch(IOException e){
Log.e(TAG, "geoLocate: IOException" + e.getMessage());
}
if(list.size() > 0){
Address address = list.get(0);
Log.d(TAG, "GeoLocate: found a Location: " +address.toString());
// Toast.makeText(this, address.toString(), Toast.LENGTH_SHORT()).show();
moveCamera(new LatLng(address.getLatitude(), address.getLongitude()), DEFAULT_ZOOM,
address.getAddressLine(0));
}
}
private void getDeviceLocation(){
Log.d(TAG, "getDeviceLocation: getting the device's current location.");
mFusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);
try {
if (mLocationPermissionGranted){
final com.google.android.gms.tasks.Task location = mFusedLocationProviderClient.getLastLocation();
location.addOnCompleteListener(new OnCompleteListener() {
@Override
public void onComplete(@NonNull com.google.android.gms.tasks.Task task) {
if(task.isSuccessful()){
Log.d(TAG, "Found Location");
Location currentLocation = (Location) task.getResult();
moveCamera(new LatLng(currentLocation.getLatitude(), currentLocation.getLongitude()),
DEFAULT_ZOOM,
"My Location");
}else{
Log.d(TAG, "onComplete: current Location is null");
Toast.makeText(MapActivity.this, "unable to get current location", Toast.LENGTH_SHORT).show();
}
}
});
}
}catch (SecurityException e){
Log.e(TAG, "getDeviceLocation: SecurityException: " + e.getMessage());
}
}
private void moveCamera(LatLng latLng, float zoom, String title){
Log.d(TAG, "moving the camera to: lat: " + latLng.latitude + ", lng: " +latLng.longitude);
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng,zoom));
if(!title.equals("My Location")){
MarkerOptions options = new MarkerOptions()
.position(latLng)
.title(title);
mMap.addMarker(options);
}
hideSoftKeyboard();
}
private void initMap(){
Log.d(TAG, "initMap: initializing map");
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(MapActivity.this);
}
private void getLocationPermission(){
Log.d(TAG, "getLocationPermission: getting location permissions");
String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION};
if(ContextCompat.checkSelfPermission(this.getApplicationContext(), FINE_LOCATION) == PackageManager.PERMISSION_GRANTED){
if(ContextCompat.checkSelfPermission(this.getApplicationContext(), COURSE_LOCATION) == PackageManager.PERMISSION_GRANTED){
mLocationPermissionGranted = true;
initMap();
}else{
ActivityCompat.requestPermissions(this, permissions, LOCATION_PERMISSION_REQUEST_CODE);
}
}else{
ActivityCompat.requestPermissions(this, permissions, LOCATION_PERMISSION_REQUEST_CODE);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
Log.d(TAG, "onRequestPermissionsResult: called.");
mLocationPermissionGranted = false;
switch (requestCode){
case LOCATION_PERMISSION_REQUEST_CODE:{
if(grantResults.length > 0){
for(int i = 0; i < grantResults.length; i++){
if(grantResults[i] != PackageManager.PERMISSION_GRANTED){
mLocationPermissionGranted = false;
Log.d(TAG, "onRequestPermissionsResult: permission failed.");
return;
}
}
mLocationPermissionGranted = true;
Log.d(TAG, "onRequestPermissionsResult: permission granted.");
//initializing map
initMap();
}
}
}
}
private void hideSoftKeyboard(){
this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
}
}

build.gradle：

模块级别：

apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.lrtapp.ardentmap"
minSdkVersion 16
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.google.firebase:firebase-messaging:11.8.0'
testImplementation 'junit:junit:4.12'
implementation 'com.google.firebase:firebase-core:16.0.1'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'me.biubiubiu.justifytext:library:1.1'
//Google Play Services
implementation 'com.google.android.gms:play-services:11.4.0'
}
apply plugin: 'com.google.gms.google-services'

项目级别：

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.2'
classpath 'com.google.gms:google-services:4.0.1'

// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
maven{
url "https://maven.google.com"
}
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Answer 1

尝试将其添加到您的 gradle 中

谷歌播放服务

implementation 'com.google.firebase:firebase-core:11.8.0'

Answer 2

要解决此问题，请更改以下代码行：

implementation 'com.google.firebase:firebase-messaging:11.8.0'
implementation 'com.google.firebase:firebase-core:16.0.1'
implementation 'com.google.android.gms:play-services:11.4.0'

自

implementation 'com.google.firebase:firebase-messaging:17.3.1'
implementation 'com.google.firebase:firebase-core:16.0.3'
//implementation 'com.google.android.gms:play-services:11.4.0'
implementation 'com.google.android.gms:play-services-maps:15.0.1'
implementation 'com.google.android.gms:play-services-location:15.0.1'

而这个：

classpath 'com.google.gms:google-services:4.0.1'

自

classpath 'com.google.gms:google-services:4.1.0'