Android小白，第一次建Android工程，结果报错了求大佬帮忙

[weixin_46205534]

A problem occurred configuring root project 'My Application'.
> Could not resolve all artifacts for configuration ':classpath'.
> Could not resolve org.jetbrains.trove4j:trove4j:20160824.
Required by:
project : > com.android.tools.build:gradle:4.0.0 > com.android.tools.build:builder:4.0.0 > com.android.tools:sdk-common:27.0.0
> Could not resolve org.jetbrains.trove4j:trove4j:20160824.
> Could not get resource 'http://maven.aliyun.com/nexus/content/groups/public/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
> Could not GET 'https://maven.aliyun.com/nexus/content/groups/public/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
> sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
> Could not resolve org.jetbrains.trove4j:trove4j:20160824.
> Could not get resource 'https://maven.google.com/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
> Could not GET 'https://maven.google.com/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
> sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
> Could not resolve org.jetbrains.trove4j:trove4j:20160824.
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
> Could not GET 'https://jcenter.bintray.com/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
> sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Exception is:
org.gradle.api.ProjectConfigurationException: A problem occurred configuring root project 'My Application'.
at org.gradle.configuration.project.LifecycleProjectEvaluator.wrapException(LifecycleProjectEvaluator.java:80)
at org.gradle.configuration.project.LifecycleProjectEvaluator.addConfigurationFailure(LifecycleProjectEvaluator.java:73)
at org.gradle.configuration.project.LifecycleProjectEvaluator.access$600(LifecycleProjectEvaluator.java:53)
at org.gradle.configuration.project.LifecycleProjectEvaluator$EvaluateProject$1.run(LifecycleProjectEvaluator.java:109)
at org.gradle.internal.Factories$1.create(Factories.java:26)
at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:189)
at org.gradle.internal.work.StopShieldingWorkerLeaseService.withLocks(StopShieldingWorkerLeaseService.java:40)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withProjectLock(DefaultProjectStateRegistry.java:238)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withMutableState(DefaultProjectStateRegistry.java:232)
at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withMutableState(DefaultProjectStateRegistry.java:193)
at org.gradle.configuration.project.LifecycleProjectEvaluator$EvaluateProject.run(LifecycleProjectEvaluator.java:96)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:68)
at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:699)
at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:142)
at org.gradle.execution.TaskPathProjectEvaluator.configure(TaskPathProjectEvaluator.java:36)
at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:62)
at org.gradle.configuration.DefaultProjectsPreparer.prepareProjects(DefaultProjectsPreparer.java:61)
at org.gradle.configuration.BuildOperatingFiringProjectsPreparer$ConfigureBuild.run(BuildOperatingFiringProjectsPreparer.java:52)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.configuration.BuildOperatingFiringProjectsPreparer.prepareProjects(BuildOperatingFiringProjectsPreparer.java:40)
at org.gradle.initialization.DefaultGradleLauncher.prepareProjects(DefaultGradleLauncher.java:207)
at org.gradle.initialization.DefaultGradleLauncher.doClassicBuildStages(DefaultGradleLauncher.java:145)
at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:130)
at org.gradle.initialization.DefaultGradleLauncher.executeTasks(DefaultGradleLauncher.java:110)
at org.gradle.internal.invocation.GradleBuildController$1.execute(GradleBuildController.java:60)
at org.gradle.internal.invocation.GradleBuildController$1.execute(GradleBuildController.java:57)
at org.gradle.internal.invocation.GradleBuildController$3.create(GradleBuildController.java:85)
at org.gradle.internal.invocation.GradleBuildController$3.create(GradleBuildController.java:78)
at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:189)
at org.gradle.internal.work.StopShieldingWorkerLeaseService.withLocks(StopShieldingWorkerLeaseService.java:40)
at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:78)
at org.gradle.internal.invocation.GradleBuildController.run(GradleBuildController.java:57)
at org.gradle.tooling.internal.provider.runner.ClientProvidedPhasedActionRunner.run(ClientProvidedPhasedActionRunner.java:60)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.launcher.exec.BuildOutcomeReportingBuildActionRunner.run(BuildOutcomeReportingBuildActionRunner.java:63)
at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32)
at org.gradle.launcher.exec.BuildCompletionNotifyingBuildActionRunner.run(BuildCompletionNotifyingBuildActionRunner.java:39)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.call(RunAsBuildOperationBuildActionRunner.java:51)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.call(RunAsBuildOperationBuildActionRunner.java:45)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:45)
这个是我build.gradle的配置

buildscript {
repositories {
google()
maven { url "http://maven.aliyun.com/nexus/content/groups/public/" }
mavenCentral()
maven { url 'https://maven.google.com' }
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:4.0.0"

// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}

allprojects {
repositories {
google()
maven { url "http://maven.aliyun.com/nexus/content/groups/public/" }
mavenCentral()
maven { url 'https://maven.google.com' }
jcenter()
}
}

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

好像是说证书问题，但是我添加了阿里云仓库的证书
aliyunmaven, 2020-10-24, trustedCertEntry,
证书指纹 (SHA1): F1:E6:55:4D:32:EF:89:6C:D5:E3:FB:F4:6E:E5:6E:4A:5C:56:92:79

[weixin_46205534]

重装了，也报错 A problem occurred configuring root project 'My Application'. > Could not resolve all artifacts for configuration ':classpath'. > Could not resolve org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72. Required by: project : > com.android.tools.build:gradle:4.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:aaptcompiler:4.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.lint:lint-gradle-api:27.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:gradle-api:4.1.0 project : > com.android.tools.build:gradle:4.1.0 > androidx.databinding:databinding-compiler-common:4.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 > com.android.tools.build:builder-model:4.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 > com.android.tools:sdk-common:27.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 > com.android.tools:common:27.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 > com.android.tools.build:manifest-merger:27.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 > com.android.tools.analytics-library:tracker:27.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.lint:lint-gradle-api:27.1.0 > com.android.tools.lint:lint-model:27.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 > com.android.tools:sdklib:27.1.0 > com.android.tools:repository:27.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 > com.android.tools:sdk-common:27.1.0 > com.android.tools.analytics-library:shared:27.1.0 > Could not resolve org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72. > Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.3.72/kotlin-stdlib-jdk8-1.3.72.pom'. > Could not HEAD 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.3.72/kotlin-stdlib-jdk8-1.3.72.pom'. > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target > Could not resolve org.ow2.asm:asm:7.0. Required by: project : > com.android.tools.build:gradle:4.1.0 project : > com.android.tools.build:gradle:4.1.0 > com.android.tools.build:builder:4.1.0 > Could not resolve org.ow2.asm:asm:7.0. > Could not get resource 'https://jcenter.bintray.com/org/ow2/asm/asm/7.0/asm-7.0.pom'. > Could not HEAD 'https://jcenter.bintray.com/org/ow2/asm/asm/7.0/asm-7.0.pom'. > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target > Could not resolve org.ow2.asm:asm-analysis:7.0. Required by: project : > com.android.tools.build:gradle:4.1.0 > Could not resolve org.ow2.asm:asm-analysis:7.0. > Could not get resource 'https://jcenter.bintray.com/org/ow2/asm/asm-analysis/7.0/asm-analysis-7.0.pom'. > Could not HEAD 'https://jcenter.bintray.com/org/ow2/asm/asm-analysis/7.0/asm-analysis-7.0.pom'. > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target > Could not resolve org.ow2.asm:asm-commons:7.0.

[农夫三拳有点甜�]

[weixin_45227396]

配置根项目“我的应用程序”时出现问题。

>未能解析配置的所有项目：类路径。

你classpath配置的有问题

[初学者-Study]

在自身网络可以下载Gradle的时候，没有必要用阿里云的代理仓库。你的AS版本应该不高，如果你短时间内无法解决问题的话，不妨重新安装一个AS，然后重新建一个项目，这样做时间花的更少。

[weixin_46205534]

引用 4 楼 weixin_45227396 的回复:

配置根项目“我的应用程序”时出现问题。 >未能解析配置的所有项目：类路径。 你classpath配置的有问题

那应该怎么做啊，网上的方法都试了

[weixin_46205534]

终于好了，谢谢各位大佬，我刚才随便下了几个sdktool，居然就好了