firebase databasereference没有给出虚拟方法错误 [英] firebase databasereference gives no virtual method error

问题描述

我正在尝试通过获取数据库引用来向Firebase数据库添加一些信息，但它会产生以下错误:

I am trying to add firebase database some info by getting database reference but it gives the fallowing error:

原因:java.lang.NoSuchMethodError:类Lcom/google/firebase/FirebaseApp中没有虚拟方法zzckb()Z；或其超级类("com.google.firebase.FirebaseApp"的声明出现在/data/app/com.bogroup.ucuncuprogram-1/split_lib_dependencies_apk.apk:classes25.dex中)

Caused by: java.lang.NoSuchMethodError: No virtual method zzckb()Z in class Lcom/google/firebase/FirebaseApp; or its super classes (declaration of 'com.google.firebase.FirebaseApp' appears in /data/app/com.bogroup.ucuncuprogram-1/split_lib_dependencies_apk.apk:classes25.dex)

我的Java代码很有趣:

My java code is lke the fallowing:

package com.bogroup.ucuncuprogram;

import android.content.Context;
import android.widget.Toast;
import com.firebase.client.Firebase;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import static com.facebook.FacebookSdk.getApplicationContext;

public class database{

    private Firebase mRootRef;
    private DatabaseReference mDatabase;


    public void kullanicikontrol(String kullaniciadi){
        mDatabase = FirebaseDatabase.getInstance().getReference();
        mDatabase.child("users").child(kullaniciadi).setValue("9999999");
        //chieldref.setValue("9999999");

        Context context = getApplicationContext();
        CharSequence text = kullaniciadi;
        int duration = Toast.LENGTH_LONG;

        Toast toast = Toast.makeText(context, text, duration);
        toast.show();
    }
}

可能是什么问题，请先谢谢.

What may be the problem, thanks in advance.

我的应用程序build.grade就像休耕:

My app build.grade is like fallowing:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"
    defaultConfig {
        applicationId "com.bogroup.ucuncuprogram"
        minSdkVersion 21
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    packagingOptions {
        exclude 'META-INF/NOTICE' // will not include NOTICE file
        exclude 'META-INF/LICENSE' // will not include LICENSE file
        // as noted by @Vishnuvathsan you may also need to include
        // variations on the file name. It depends on your dependencies.
        // Some other common variations on notice and license file names
        exclude 'META-INF/notice'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/license'
        exclude 'META-INF/license.txt'
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.0.0'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.google.firebase:firebase-core:9.4.0'
    compile 'com.google.firebase:firebase-auth:9.4.0'
    compile 'com.google.firebase:firebase-database:9.4.0'
    compile 'com.google.firebase:firebase-crash:9.4.0'
    compile 'com.firebase:firebase-client-android:2.2.4'
    //compile 'com.google.firebase:firebase-storage:9.4.0'
    compile 'com.firebaseui:firebase-ui:0.4.4'
    compile 'com.google.android.gms:play-services-auth:9.4.0'
    compile 'com.android.support:animated-vector-drawable:25.0.0'
    compile 'com.android.support:design:25.0.0'
    compile 'com.android.support:support-v4:25.0.0'
    compile 'com.android.support:cardview-v7:25.0.0'
    compile 'com.android.support:customtabs:25.0.0'
    compile 'com.android.support:recyclerview-v7:25.0.0'
    compile 'com.firebaseui:firebase-ui-auth:1.2.0'
    compile 'com.squareup.picasso:picasso:2.5.2'
    //compile 'com.android.support:customtabs:25.2.0'
    testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'

推荐答案

您的Firebase和Firebase UI版本需要

Your versions of Firebase and Firebase UI need to line up according to the table on their Github Page.

作为参考，如果您选择升级(我强烈推荐).

For reference, should you choose to upgrade (I would highly recommend it).

FirebaseUI版本
1.2.0

FirebaseUI Version
1.2.0

Firebase/Play服务版本
10.2.0

Firebase/Play Services Version
10.2.0

简便的方法

ext {
    googlePlayVer = "10.2.0"
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.0.0'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'

    // For example
    compile "com.google.firebase:firebase-core:${googlePlayVer}"
    compile "com.google.firebase:firebase-auth:${googlePlayVer}"
    compile "com.google.firebase:firebase-database:${googlePlayVer}"

这篇关于firebase databasereference没有给出虚拟方法错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！