Question

我已经安装了SDK JDK，并将它们作为外部工具添加到Unity中，一切看起来都在纸上，但是当我尝试构建它时失败。

我在寻找它的地方有avdmanager，所以我完全不解。求救！

我在控制台中收到以下错误：

CommandInvokationFailure: Unable to list target platforms. Please make sure the android sdk path is correct. 
/Users/mickeycreative/sdk/tools/bin/avdmanager list target -c

stderr[
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
    at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
    at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
    at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
    at com.android.sdklib.tool.AvdManagerCli.parseSdk(AvdManagerCli.java:328)
    at com.android.sdklib.tool.AvdManagerCli.run(AvdManagerCli.java:204)
    at com.android.sdklib.tool.AvdManagerCli.main(AvdManagerCli.java:195)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
    ... 6 more
]
stdout[

]
exit code: 1
UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.AndroidSDKTools.RunAndroidSdkTool (System.String toolName, System.String arguments, Boolean updateCommand, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.AndroidSDKTools.ListTargetPlatforms (UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit)
UnityEditor.Android.AndroidSDKTools.GetTopAndroidPlatformAvailable (UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit)
UnityEditor.Android.PostProcessor.Tasks.CheckAndroidSDK+SDKPlatformDetector.GetVersion (UnityEditor.Android.AndroidSDKTools sdkTools)
UnityEditor.Android.PostProcessor.Tasks.CheckAndroidSDK+SDKComponentDetector.Detect (UnityEditor.Android.AndroidSDKTools sdkTools, System.Version minVersion, UnityEditor.Android.PostProcessor.ProgressHandler onProgress)
UnityEditor.Android.PostProcessor.Tasks.CheckAndroidSDK.EnsureSDKComponentVersion (System.Version minVersion, UnityEditor.Android.PostProcessor.Tasks.SDKComponentDetector detector)
UnityEditor.Android.PostProcessor.Tasks.CheckAndroidSDK.EnsureSDKComponentVersion (Int32 minVersion, UnityEditor.Android.PostProcessor.Tasks.SDKComponentDetector detector)
UnityEditor.Android.PostProcessor.Tasks.CheckAndroidSDK.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Answer 1

我在这个方面苦苦挣扎并找到了解决方案。

问题：导致此失败的主要原因是Unity调用的Android Tools与Java 9+不兼容。如果您的全局JAVA_HOME仍然指向Java 9+版本，那么在Unity首选项（外部工具）中指向Java 8 JDK是不够的。

解决方案：将全局JAVA_HOME更改为指向JDK 8 VM（如果您不需要Java 9或10，则可以选择删除它们，以便系统仅依赖于Java 8）

Answer 2

我有类似的问题并使用较旧的sdk版本解决了它。也许这会有所帮助:)。

使用Unity 2018 beta制作Android版本

2 个答案: