具有依赖关系的Gradle多项目设置->无法解决所有依赖关系

Question

我有一个带有gradle的小型多项目安装程序（也是它的新功能），但是它不能编译。 我可以在IDE中运行它，但是当我要编译它时，它会失败。 然后，当我尝试使用Game项目中Engine项目的依赖项之一时，它甚至在IDE内部失败。 更多细节进一步。

:Engine:compileJava UP-TO-DATE
:Engine:processResources UP-TO-DATE
:Engine:classes UP-TO-DATE
:Engine:jar
:compileJava

FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all dependencies for configuration ':compileClasspath'.
> Could not find org.lwjgl:lwjgl:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl/3.0.1-SNAPSHOT/lwjgl-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl/3.0.1-SNAPSHOT/lwjgl-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-egl:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-egl/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-egl/3.0.1-SNAPSHOT/lwjgl-egl-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-egl/3.0.1-SNAPSHOT/lwjgl-egl-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-glfw:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-glfw/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-glfw/3.0.1-SNAPSHOT/lwjgl-glfw-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-glfw/3.0.1-SNAPSHOT/lwjgl-glfw-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-jemalloc:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-jemalloc/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-jemalloc/3.0.1-SNAPSHOT/lwjgl-jemalloc-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-jemalloc/3.0.1-SNAPSHOT/lwjgl-jemalloc-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-openal:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-openal/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-openal/3.0.1-SNAPSHOT/lwjgl-openal-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-openal/3.0.1-SNAPSHOT/lwjgl-openal-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-opencl:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opencl/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opencl/3.0.1-SNAPSHOT/lwjgl-opencl-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opencl/3.0.1-SNAPSHOT/lwjgl-opencl-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-opengl:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opengl/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opengl/3.0.1-SNAPSHOT/lwjgl-opengl-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opengl/3.0.1-SNAPSHOT/lwjgl-opengl-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-opengles:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opengles/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opengles/3.0.1-SNAPSHOT/lwjgl-opengles-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-opengles/3.0.1-SNAPSHOT/lwjgl-opengles-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-stb:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-stb/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-stb/3.0.1-SNAPSHOT/lwjgl-stb-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-stb/3.0.1-SNAPSHOT/lwjgl-stb-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine
> Could not find org.lwjgl:lwjgl-vulkan:3.0.1-SNAPSHOT.
  Searched in the following locations:
      https://jcenter.bintray.com/org/lwjgl/lwjgl-vulkan/3.0.1-SNAPSHOT/maven-metadata.xml
      https://jcenter.bintray.com/org/lwjgl/lwjgl-vulkan/3.0.1-SNAPSHOT/lwjgl-vulkan-3.0.1-SNAPSHOT.pom
      https://jcenter.bintray.com/org/lwjgl/lwjgl-vulkan/3.0.1-SNAPSHOT/lwjgl-vulkan-3.0.1-SNAPSHOT.jar
  Required by:
      project : > project :Engine

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 9.375 secs

我的文件记录很简单：

项目\\引擎

项目\\游戏

我的Game项目应该使用Engine项目，这样我就可以轻松地更改Engine项目中的内容，而不必为其构建新的.jar文件，而Game项目也可以使用它（例如，如果您将其添加为Eclipse中的依赖项目），并且在编译Game项目时，应该编译Engine项目以获取Game项目所需的jar。

目前，它的工作方式是Game项目依赖于Engine项目，并且在我的IDE中工作得很好（嗯，至少在引擎项目为importet时有效），但是一旦运行构建，它就会因错误显示而失败以上。 当我想访问一个类，该类在Engine项目中是一个依赖项，但在完整的Engine项目是依赖项的Game项目中却不能访问时，它在IDE中也会失败。

Game项目的build.gradle文件。

// Apply the java plugin to add support for Java
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'

// In this section you declare where to find the dependencies of your project
repositories {
    // Use 'jcenter' for resolving your dependencies.
    // You can declare any Maven/Ivy/file repository here.
    jcenter()
}

// In this section you declare the dependencies for your production and test code
dependencies {
    // The production code uses the SLF4J logging API at compile time
    //compile 'org.slf4j:slf4j-api:1.7.21'

    // Declare the dependency for your favourite test framework you want to use in your tests.
    // TestNG is also supported by the Gradle Test task. Just change the
    // testCompile dependency to testCompile 'org.testng:testng:6.8.1' and add
    // 'test.useTestNG()' to your build script.
    //testCompile 'junit:junit:4.12'

    compile project(':Engine')
    runtime project(':Engine')
}

Game项目的settings.gradle文件：

include 'Engine'
project (':Engine').projectDir = new File('../Engine') 

rootProject.name = 'Game'

然后，我在这里找到了Engine项目的build.gradle文件：

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'

sourceCompatibility = 1.8
targetCompatibility = 1.8

// In this section you declare where to find the dependencies of your project
repositories {
    // Use 'jcenter' for resolving your dependencies.
    // You can declare any Maven/Ivy/file repository here.
    jcenter()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
}

task wrapper(type: Wrapper) {
    gradleVersion = '3.1'
}

sourceSets {
    main.java.srcDir "src/main/java"
}

project.ext.lwjglVersion = "3.0.1-SNAPSHOT"

import org.gradle.internal.os.OperatingSystem

switch ( OperatingSystem.current() ) {
    case OperatingSystem.WINDOWS:
      project.ext.lwjglNatives = "natives-windows"
      break
    case OperatingSystem.LINUX:
      project.ext.lwjglNatives = "natives-linux"
      break
    case OperatingSystem.MAC_OS:
      project.ext.lwjglNatives = "natives-macos"
      break
}

dependencies {
    // LWJGL dependencies START
    compile "org.lwjgl:lwjgl:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-egl:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-glfw:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-jemalloc:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-openal:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-opencl:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-opengl:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-opengles:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-stb:${lwjglVersion}"
    compile "org.lwjgl:lwjgl-vulkan:${lwjglVersion}"
    // LWJGL natives
    runtime "org.lwjgl:lwjgl:${lwjglVersion}:${lwjglNatives}"
    runtime "org.lwjgl:lwjgl-glfw:${lwjglVersion}:${lwjglNatives}"
    runtime "org.lwjgl:lwjgl-jemalloc:${lwjglVersion}:${lwjglNatives}"
    runtime "org.lwjgl:lwjgl-openal:${lwjglVersion}:${lwjglNatives}"
    runtime "org.lwjgl:lwjgl-stb:${lwjglVersion}:${lwjglNatives}"
    // LWJGL dependencies END
}

那么，为什么我会收到此错误，又如何以一种可以运行和构建的方式解决该错误，该问题是在Linux，Windows和Mac上使用Eclipse和Intellij IDE进行的？ 仅在运行时发生错误

gradlew构建

在游戏项目中。 构建引擎项目工作正常。 当我在Eclipse中运行Game项目时，它也可以正常工作，但是当我要构建它或要使用Game项目中Engine项目可以访问的类时，它就会失败。

Answer 1

编辑（更好的答案）

我会以不同的方式组织项目。

尝试使用此层次结构：

Project/ 
  |
  +- Game/
  +- Engine/
  +- build.gradle
  +- settings.gradle

在您的settings.gradle中

include ':Game'
include ':Engine'

在项目根目录的build.gradle中

// In this section you declare where to find the dependencies of your project
repositories {
    // Use 'jcenter' for resolving your dependencies.
    // You can declare any Maven/Ivy/file repository here.
    jcenter()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
}

子项目的repositories节点不再需要。

您的游戏项目的settings.gradle只是

rootProject.name = 'Game'