我正在用libgdx开发游戏，并且正在使用外部jar来处理JSON，我知道libgdx拥有它自己的，但是我以前曾使用过此jar，并且知道如何使用它。无论如何，我将其添加到根目录中的build.gradle中并进行了同步。但是现在当我尝试构建项目时，我收到了一条大错误消息：
Duplicate class org.hamcrest.BaseDescription found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.BaseMatcher found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.CoreMatchers found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.Description found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.Factory found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.Matcher found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.SelfDescribing found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.StringDescription found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.AllOf found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.AnyOf found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.DescribedAs found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.Is found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.IsAnything found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.IsEqual found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.IsInstanceOf found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.IsNot found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.IsNull found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.core.IsSame found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.internal.ArrayIterator found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.internal.SelfDescribingValue found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
Duplicate class org.hamcrest.internal.SelfDescribingValueIterator found in modules hamcrest-core-1.1.jar (org.hamcrest:hamcrest-core:1.1) and junit-4.10.jar (junit:junit:4.10)
我不知道这是什么意思，或者这个具有重复项的org.hamcrest是什么。这是我的build.gradle文件：
buildscript {
repositories {
mavenLocal()
mavenCentral()
maven { url "https://plugins.gradle.org/m2/" }
maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
jcenter()
google()
}
dependencies {
classpath 'org.wisepersist:gwt-gradle-plugin:1.0.9'
classpath 'com.android.tools.build:gradle:3.4.1'
classpath 'com.mobidevelop.robovm:robovm-gradle-plugin:2.3.8'
}
}
allprojects {
apply plugin: "eclipse"
version = '1.0'
ext {
appName = "ShootOut"
gdxVersion = '1.9.10'
roboVMVersion = '2.3.8'
box2DLightsVersion = '1.4'
ashleyVersion = '1.7.0'
aiVersion = '1.8.0'
}
repositories {
mavenLocal()
mavenCentral()
jcenter()
google()
maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
maven { url "https://oss.sonatype.org/content/repositories/releases/" }
}
}
project(":desktop") {
apply plugin: "java-library"
dependencies {
implementation project(":core")
api "com.badlogicgames.gdx:gdx-backend-lwjgl:$gdxVersion"
api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
api "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-desktop"
api "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-desktop"
api "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
api "com.badlogicgames.gdx:gdx-tools:$gdxVersion"
api "com.badlogicgames.gdx:gdx-controllers-desktop:$gdxVersion"
api "com.badlogicgames.gdx:gdx-controllers-platform:$gdxVersion:natives-desktop"
}
}
project(":android") {
apply plugin: "android"
configurations { natives }
dependencies {
implementation project(":core")
api "com.badlogicgames.gdx:gdx-backend-android:$gdxVersion"
natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi"
natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi-v7a"
natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-arm64-v8a"
natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86"
natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86_64"
api "com.badlogicgames.gdx:gdx-box2d:$gdxVersion"
natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-armeabi"
natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-armeabi-v7a"
natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-arm64-v8a"
natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-x86"
natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-x86_64"
api "com.badlogicgames.gdx:gdx-bullet:$gdxVersion"
natives "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-armeabi"
natives "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-armeabi-v7a"
natives "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-arm64-v8a"
natives "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-x86"
natives "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-x86_64"
api "com.badlogicgames.box2dlights:box2dlights:$box2DLightsVersion"
api "com.badlogicgames.ashley:ashley:$ashleyVersion"
api "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi"
natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-armeabi-v7a"
natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-arm64-v8a"
natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-x86"
natives "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-x86_64"
api "com.badlogicgames.gdx:gdx-ai:$aiVersion"
api "com.badlogicgames.gdx:gdx-controllers:$gdxVersion"
api "com.badlogicgames.gdx:gdx-controllers-android:$gdxVersion"
}
}
project(":ios") {
apply plugin: "java-library"
apply plugin: "robovm"
dependencies {
implementation project(":core")
api "com.mobidevelop.robovm:robovm-rt:$roboVMVersion"
api "com.mobidevelop.robovm:robovm-cocoatouch:$roboVMVersion"
api "com.badlogicgames.gdx:gdx-backend-robovm:$gdxVersion"
api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-ios"
api "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-ios"
api "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-ios"
api "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-ios"
}
}
project(":html") {
apply plugin: "java-library"
apply plugin: "gwt"
apply plugin: "war"
dependencies {
implementation project(":core")
api "com.badlogicgames.gdx:gdx-backend-gwt:$gdxVersion"
api "com.badlogicgames.gdx:gdx:$gdxVersion:sources"
api "com.badlogicgames.gdx:gdx-backend-gwt:$gdxVersion:sources"
api "com.badlogicgames.gdx:gdx-box2d:$gdxVersion:sources"
api "com.badlogicgames.gdx:gdx-box2d-gwt:$gdxVersion:sources"
api "com.badlogicgames.box2dlights:box2dlights:$box2DLightsVersion:sources"
api "com.badlogicgames.ashley:ashley:$ashleyVersion:sources"
api "com.badlogicgames.gdx:gdx-ai:$aiVersion:sources"
api "com.badlogicgames.gdx:gdx-controllers:$gdxVersion:sources"
api "com.badlogicgames.gdx:gdx-controllers-gwt:$gdxVersion"
api "com.badlogicgames.gdx:gdx-controllers-gwt:$gdxVersion:sources"
}
}
project(":core") {
apply plugin: "java-library"
dependencies {
implementation group: 'com.googlecode.json-simple', name: 'json-simple', version: '1.1.1'
api "com.badlogicgames.gdx:gdx:$gdxVersion"
api "com.badlogicgames.gdx:gdx-box2d:$gdxVersion"
api "com.badlogicgames.gdx:gdx-bullet:$gdxVersion"
api "com.badlogicgames.box2dlights:box2dlights:$box2DLightsVersion"
api "com.badlogicgames.ashley:ashley:$ashleyVersion"
api "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
api "com.badlogicgames.gdx:gdx-ai:$aiVersion"
api "com.badlogicgames.gdx:gdx-controllers:$gdxVersion"
}
}
我唯一添加的是对核心项目中的依赖项的“实现组：'com.googlecode.json-simple'，名称：'json-simple'，版本：'1.1.1'”。 任何想法如何解决此错误？甚至是什么原因造成的？
答案 0 :(得分：0)
尝试将以下几行添加到应用build.gradle文件中。
android {
// Some other stuffs
configurations {
all*.exclude module: 'org.hamcrest' // This removes all other versions of `org.hamcrest` if gets duplicated from all the artifacts.
}
// other stuffs
}
答案 1 :(得分：0)
我最终不得不添加：
configurations { compile.exclude group: "junit", module: "junit"}
在build.gradle的核心部分中，并且有效。