我正在尝试使用Jgrapht库,但它需要lambdas ...
这是我的代码:
// 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
}
和:app
apply plugin: "me.tatarka.retrolambda" version "3.3.0"
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'
}
错误是:错误:(1,0)无法在空对象上调用方法version()
打开文件
错误在哪里,是什么?谢谢
最佳答案
您正在混合两种语法。使用或buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath "gradle.plugin.me.tatarka:gradle-retrolambda:3.3.0"
}
}
apply plugin: 'me.tatarka.retrolambda'
或plugins {
id "me.tatarka.retrolambda" version "3.3.0"
}
(gradle-retrolambda README),另请参阅the gradle documentation。
关于android - 无法在空对象上调用方法version(),我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/40106266/