android - Android Studio 3.0 中的 Gradle 构建错误

Question

你能帮我解决 Android 3.0 中的 Gradle 构建问题吗？

我是 Android Studio 的新手。这是我在 AS 3.0 中的配置:

gradle->wrapper->gradle-wrapper.properties:

distributionUrl=https\://services.gradle.org/distributions/gradle-4.2.1-all.zip

build.gradle 依赖项(适用于 Gradle 的 Android 插件):

dependencies {classpath 'com.android.tools.build:gradle:3.0.0'}

来自 Android Studio 的堆栈跟踪:

D:\AppiumAutomation\MobileTest>gradlew assemble --stacktrace

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'MobileTest'.
> Could not resolve all files for configuration ':classpath'.
   > Could not resolve com.android.tools.build:gradle:3.0.0.
     Required by:
         project :
      > Could not resolve com.android.tools.build:gradle:3.0.0.
         > Could not get resource 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.0/gradle-3.0.0.pom'.
            > Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.0/gradle-3.0.0.pom'.
               > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification pat
h to requested target
      > Could not resolve com.android.tools.build:gradle:3.0.0.
         > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.0.0/gradle-3.0.0.pom'.
            > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.0.0/gradle-3.0.0.pom'.
               > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification pat
h to requested target

Answer 1

这是与 Android Studio 3.0 和企业网络相关的问题。我遇到了同样的问题。

Error:Could not resolve all files for configuration ':app:debugAndroidTestRuntimeClasspath'.
    > Could not resolve com.android.support.test:runner:1.0.1.
      Required by:
          project :app
       > Could not resolve com.android.support.test:runner:1.0.1.
          > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/support/test/runner/1.0.1/runner-1.0.1.pom'.
             > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/support/test/runner/1.0.1/runner-1.0.1.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 com.android.support.test.espresso:espresso-core:3.0.1.
      Required by:
          project :app
       > Could not resolve com.android.support.test.espresso:espresso-core:3.0.1.
          > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/support/test/espresso/espresso-core/3.0.1/espresso-core-3.0.1.pom'.
             > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/support/test/espresso/espresso-core/3.0.1/espresso-core-3.0.1.pom'.
                > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

我留给你 2 个解决方案:

第一:您必须手动将证书添加到您的 java 安全证书(由 Android 使用):

C:\Program Files\Android\Android Studio\jre\jre\lib\security\cacerts

解决方案 01(对我不起作用):

转到:

C:\Program Files\Android\Android Studio\jre\jre\bin

下载您需要的证书(只需复制有问题的 URL 并将其粘贴到 <remote_host_name> 中):

keytool -J-Dhttps.proxyHost=<proxy_hostname> -J-Dhttps.proxyPort=<proxy_port> -printcert -rfc -sslserver <remote_host_name:remote_ssl_port> > <name.cer>

Example:
C:\Program Files\Android\Android Studio\jre\jre\bin>keytool -J-Dhttps.proxyHost= proxy.mycompany.com -J-Dhttps.proxyPort=80 -printcert -rfc -sslserver https://dl.google.com/dl/android/maven2/com/android/support/test/runner/1.0.1/runner-1.0.1.pom > maven2.cer

然后运行命令:

keytool -import -noprompt -trustcacerts -keystore ..\lib\security\cacerts -importcert -alias <AliasName> -file <name.cer> -storepass <cacertsPassword>

如果您从未更改过 cacerts 的密码，则默认密码为 changeit:

Example:
C:\Program Files\Android\Android Studio\jre\jre\bin>keytool -import -noprompt -trustcacerts -keystore ..\lib\security\cacerts -importcert -alias Maven -file maven2.cer -storepass changeit

解决方案 02(对我有用):

下载进入URL站点的pom并保存到本地repo中:

Ex:
If your missing resoruce is:
https://dl.google.com/dl/android/maven2/com/android/support/test/espresso/espresso-core/3.0.1/espresso-core-3.0.1.pom

Download it and put it in:
C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/test/espresso/espresso-core/3.0.1/espresso-core-3.0.1.pom