java.lang.NullPointerException(无错误信息)APK构建

Question

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        maven {
            url "https://plugins.gradle.org/m2/"
        }
        jcenter()
    }
    dependencies {
        classpath "gradle.plugin.me.tatarka:gradle-retrolambda:3.3.0"
        classpath 'com.android.tools.build:gradle:2.2.1'
    }
}
allprojects {
    repositories {
        jcenter()
        mavenCentral()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

:app 文件

apply plugin: 'me.tatarka.retrolambda'
apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "24.0.3"
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    defaultConfig {
        applicationId "it.univpm.gruppoids.iotforemergencyandnavigation"
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"

        jackOptions {
            enabled true
        }
    }



    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}
dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
    compile 'com.android.support:support-v4:23.4.0'
    compile 'com.journeyapps:zxing-android-embedded:3.2.0@aar'
    compile 'com.google.zxing:core:3.2.1'
    compile 'org.jgrapht:jgrapht-core:1.0.0'
}

当我尝试构建 APK 时，它显示:错误:配置项目“:app”时出现问题。

java.lang.NullPointerException (no error message)

是不是版本问题？还是与 lamdas？有人可以帮助我吗？

Answer 1

添加后我遇到了同样的问题:

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

因为我默认的java版本是10:

$ java -version
java version "10.0.1" 2018-04-17

更改为 1.8 后(使用 sudo update-alternatives --config java)问题已修复。