Question

我有一个包含多个模块的项目，每个模块都是一个单独的应用程序。我将Firebase添加到一个模块，从那时起，另一个人的gradle无法同步。我不断得到：“无法在null对象上调用方法get（），当我注释掉播放服务”依赖关系时，它会消失。我的朋友是：

buildscript {
    repositories {
        google()
        maven { url 'https://maven.fabric.io/public' }
    }

    dependencies {
        classpath 'io.fabric.tools:gradle:1.+'
    }
}
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'

repositories {
    maven { url 'https://maven.fabric.io/public' }
}


android {
    compileSdkVersion 27
    buildToolsVersion "27.0.3"

    defaultConfig {
        applicationId "xxxx"
        minSdkVersion 14
        targetSdkVersion 27

//        multiDexEnabled true

        compileOptions {
            sourceCompatibility JavaVersion.VERSION_1_7
            targetCompatibility JavaVersion.VERSION_1_7
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }

}

dependencies {
    implementation('com.crashlytics.sdk.android:crashlytics:2.9.1@aar') {
        transitive = true;
    }
    implementation 'com.android.support:support-v4:27.1.1'
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:cardview-v7:27.1.1'
    implementation 'com.google.android.gms:play-services-location:15.0.1'
    implementation 'com.google.android.gms:play-services-maps:15.0.1'
}

顶级项目gradle：

buildscript {
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.3'
    }
}

allprojects {
    repositories {
        jcenter()
        google()
    }
}

我使用gradle版本4.4和Android插件版本3.1.3 错误的堆栈

java.lang.NullPointerException: Cannot invoke method get() on null object
    at
 org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91)
    at
 org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:48)
    at
 org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at
 org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:35)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at
 org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:57)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
    at com.google.gms.googleservices.GoogleServicesPlugin$1$_afterResolve_closure1.doCall(GoogleServicesPlugin.groovy:316)
    at
 sun.reflect.GeneratedMethodAccessor357.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at
 java.lang.reflect.Method.invoke(Method.java:498)
    at
 org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
    at
 groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
    at
 org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
    at
 groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
    at
 groovy.lang.Closure.call(Closure.java:414)
    at
 groovy.lang.Closure.call(Closure.java:430)

(another 150 lines)

任何建议都会有所帮助，欢呼声。

Answer 1

如果您使用差异模块，则必须将firebase配置添加到所有android模块

因此

将实现“ com.google.firebase：firebase-core：x”添加到依赖项
添加应用插件：'com.google.gms.google-services'
获取每个android模块的firebase配置（“ google-service.json”）并将其添加到每个模块

gradle Android studio出错：“无法在null对象上调用方法get（）”

1 个答案: