java - ionic cordova构建android错误nuillpoijtexception

Question

当我运行 cordova build android 时出现错误。

exit /b 1 Command finished with error code 1:\platforms\android\gradlew cdvBuildDebug,-b,myprodplatforms\android\build.gradle myprodplatforms\android\gradlew: Command failed with exit code 1 Error output: Exception in thread "main" java.lang.NullPointerException
        at org.gradle.wrapper.PathAssembler.getDistName(PathAssembler.java:84)
        at 
org.gradle.wrapper.PathAssembler.getDistribution(PathAssembler.java:40)
        at org.gradle.wrapper.Install.createDist(Install.java:44)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:63) Error: myprodplatforms\android\gradlew: Command failed with exit code 1 Error output: Exception in thread "main" java.lang.NullPointerException
        at org.gradle.wrapper.PathAssembler.getDistName(PathAssembler.java:84)
        at org.gradle.wrapper.PathAssembler.getDistribution(PathAssembler.java:40)
        at org.gradle.wrapper.Install.createDist(Install.java:44)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:63)
    at ChildProcess.whenDone (myprodnode_modules\cordova-common\src\superspawn.js:135:23)
    at ChildProcess.emit (events.js:210:5)
    at ChildProcess.cp.emit (myprodnode_modules\cross-spawn\lib\enoent.js:34:29)
    at maybeClose (internal/child_process.js:1021:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:283:5) [ERROR] An error occurred while running subprocess cordova.

        cordova.cmd build android --verbose exited with exit code 1.

        Re-running this command with the --verbose flag may provide more information.

我尝试删除并添加 android 删除节点模块，我将节点模块更新到最新版本。

有人可以告诉我如何解决错误吗？

Answer 1

Ivan，有一件事似乎是错字，命令是 ionic cordova build android，您只提到了 cordova build android 命令，ionic 是失踪了。

看来您的错误与 Android Studio/Gradle 安装更相关，与节点模块或 ionic 无关。仍然按照提到的错误，它本身建议请使用 --verbose 标志运行构建命令，如下所示。

ionic cordova build android --verbose

--verbose 标志可以帮助您给出准确的 Gradle 或特定组件相关错误，这可以进一步帮助您找到特定的根本原因。