ionic项目使用cordova打包为android apk时报"Could not download guava.jar"错误的解决办法

雨点打透心脏的1/2处 2023-07-18 06:13 1阅读 0赞

### ionic项目使用cordova打包为android apk时报"Could not download guava.jar"错误的解决办法 ###

*  问题背景
 *  问题原因
 *  问题解决

# 问题背景 #

环境为最新的ionic CLI 6.3.0  
执行打包命令

ionic cordova build android

执行结果

Starting a Gradle Daemon (subsequent builds will be faster)
    
    BUILD SUCCESSFUL in 9s
    1 actionable task: 1 executed
    Subproject Path: CordovaLib
    Subproject Path: app
    Downloading https://services.gradle.org/distributions/gradle-4.10.3-all.zip
    ...........10%...........20%...........30%...........40%............50%...........60%...........70%...........80%...........90%............100%
    
    Welcome to Gradle 4.10.3!
    
    Here are the highlights of this release:
     - Incremental Java compilation by default
     - Periodic Gradle caches cleanup
     - Gradle Kotlin DSL 1.0-RC6
     - Nested included builds
     - SNAPSHOT plugin versions in the `plugins {}` block
    
    For more details see https://docs.gradle.org/4.10.3/release-notes.html
    
    Starting a Gradle Daemon (subsequent builds will be faster)
    
    FAILURE: Build failed with an exception.
    
    * What went wrong:
    A problem occurred configuring root project 'android'.
    > Could not resolve all artifacts for configuration ':classpath'.
       > Could not download guava.jar (com.google.guava:guava:26.0-jre)
          > Could not get resource 'https://jcenter.bintray.com/com/google/guava/guava/26.0-jre/guava-26.0-jre.jar'.
             > Read timed out
       > Could not download kotlin-reflect.jar (org.jetbrains.kotlin:kotlin-reflect:1.3.11)
          > Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-reflect/1.3.11/kotlin-reflect-1.3.11.jar'.
             > Read timed out
    
    * Try:
    Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
    
    * Get more help at https://help.gradle.org
    
    BUILD FAILED in 3m 5s
    E:\ionicworkspace\mes\platforms\android\gradlew: Command failed with exit code 1 Error output:
    FAILURE: Build failed with an exception.
    
    * What went wrong:
    A problem occurred configuring root project 'android'.
    > Could not resolve all artifacts for configuration ':classpath'.
       > Could not download guava.jar (com.google.guava:guava:26.0-jre)
          > Could not get resource 'https://jcenter.bintray.com/com/google/guava/guava/26.0-jre/guava-26.0-jre.jar'.
             > Read timed out
       > Could not download kotlin-reflect.jar (org.jetbrains.kotlin:kotlin-reflect:1.3.11)
          > Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-reflect/1.3.11/kotlin-reflect-1.3.11.jar'.
             > Read timed out
    
    * Try:
    Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
    
    * Get more help at https://help.gradle.org
    
    BUILD FAILED in 3m 5s

# 问题原因 #

因为最新的ionic打包需要用到gradle，我的电脑的gradle版本是最新的gradle-6.2.2-bin，但是项目打包需要的版本是4.10.3，版本不一致导致的问题。

# 问题解决 #

下载gradle-4.10.3-bin，并修改环境变量path中gradle的指向为此版本的bin目录，重新打开一个cmd窗口进行打包就可以了。