相关疑难解决方法(0)

新安装的Android Studio 3.1.3在制作新项目和第一次编译时会出现奇怪的依赖项错误.

类似的问题无助于解决问题.

事件日志:

Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:appcompat-v7:28.0.0-alpha3.
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Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support.constraint:constraint-layout:1.1.2.
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Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve com.android.support:appcompat-v7:28.0.0-alpha3.
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Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve com.android.support.constraint:constraint-layout:1.1.2.
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Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve com.android.support:appcompat-v7:28.0.0-alpha3.
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Unable …

我是一名计算机科学专业的学生,​​我正在尝试熟悉为夏季业余爱好构建应用程序.但是,在过去的几天里,当我尝试同步Gradle时,它给出了同样的错误,说明了这一点

无法下载gradle-core.jar.

我将在这篇文章的底部发布完整的错误消息.

当然,我确保我不在离线模式下工作.最重要的是,我正在使用强制https://获取源http://.我还在文件https://中将distributionUrl 更改为http:// gradle-wrapper.properties.我尝试了不同的代理并更改了build.gradle文件中的存储库jcenter(), mavenCentral(), and google().

我甚至试图与我的防火墙同步并关闭防病毒软件,但没有任何工作.您将在下面找到我的整个错误消息.

org.gradle.api.ProjectConfigurationException: A problem occurred configuring root project 'AndroidStudioProjects'.
...
    at org.gradle.configuration.project.LifecycleProjectEvaluator.doConfigure(LifecycleProjectEvaluator.java:64)
    ... 84 more
Caused by: org.gradle.internal.resolve.ArtifactResolveException: Could not download gradle-core.jar (com.android.tools.build:gradle-core:3.1.3)
    at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver$RemoteRepositoryAccess.resolveArtifact(ExternalResourceResolver.java:506)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository$ResolveAndCacheRepositoryAccess.resolveArtifact(CachingModuleComponentRepository.java:409)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.BaseModuleComponentRepositoryAccess.resolveArtifact(BaseModuleComponentRepositoryAccess.java:65)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.memcache.InMemoryCachedModuleComponentRepository$CachedAccess.resolveArtifact(InMemoryCachedModuleComponentRepository.java:124)
    at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ErrorHandlingModuleComponentRepository$ErrorHandlingModuleComponentRepositoryAccess.resolveArtifact(ErrorHandlingModuleComponentRepository.java:171)
    ...
    ... 6 more
Caused by: org.gradle.api.resources.ResourceException: Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle-core/3.1.3/gradle-core-3.1.3.jar'.
    at org.gradle.internal.resource.ResourceExceptions.failure(ResourceExceptions.java:74)
    at org.gradle.internal.resource.ResourceExceptions.getFailed(ResourceExceptions.java:57)
    at org.gradle.internal.resource.transfer.AccessorBackedExternalResource.withContentIfPresent(AccessorBackedExternalResource.java:146)
    ...
    at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver$RemoteRepositoryAccess.resolveArtifact(ExternalResourceResolver.java:499)
    ... 27 more
Caused by: javax.net.ssl.SSLException: SSL …

我在尝试构建项目时遇到这些错误,看起来它认为我有两个相同的库,但我不确定原因:

Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.legacy:legacy-support-core-utils:1.0.0.
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Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.appcompat:appcompat:1.0.1.
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Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve androidx.legacy:legacy-support-v4:1.0.0.
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Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.google.inject:guice:4.1.
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Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.google.firebase:firebase-appindexing:16.0.2.
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Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve …