问题描述
我跟随着团结的坦克！"教程，现在我正在尝试在Android上移植游戏，这是我第一次在Unity上进行，现在要构建APK时，Unity告诉我无法构建APK"，然后出现一些错误，请附加上您我认为这是致命的错误，请告诉我它有什么问题.
i followed the unity "tanks!" tutorial and now i'm trying to port the game on Android, it's my first time on Unity, now when it's going to build the APK unity tells me "Failed To Build APK" and then i get some errors, i'm attaching you the error i think it's fatal, please tell me what's wrong with it.
CommandInvokationFailure: Failed to build apk.
C:/Program Files/Java/jdk-9.0.1\bin\java.exe -Xmx2048M -D com.android.sdkmanager.toolsdir="C:/Android_SDK\tools" -D file.encoding=UTF8 -jar "C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar"-
stderr[
Exception in thread "main" java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at SDKMain.main(SDKMain.java:130)
Caused by: java.lang.NoClassDefFoundError: sun/misc/BASE64Encoder
at com.android.sdklib.internal.build.SignedJarBuilder.<init>(SignedJarBuilder.java:177)
at com.android.sdklib.build.ApkBuilder.init(ApkBuilder.java:446)
at com.android.sdklib.build.ApkBuilder.<init>(ApkBuilder.java:422)
at com.android.sdklib.build.ApkBuilder.<init>(ApkBuilder.java:362)
at UnityApkBuilder.<init>(UnityApkBuilder.java:214)
at UnityApkBuilder.main(UnityApkBuilder.java:34)
... 5 more
Caused by: java.lang.ClassNotFoundException: sun.misc.BASE64Encoder
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:466)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:563)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
... 11 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.RunCommandInternal (System.String javaExe, System.String sdkToolsDir, System.String[] sdkToolCommand, Int32 emoryMB, System.String workingdir, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.AndroidSDKTools.RunCommandSafe (System.String javaExe, System.String sdkToolsDir, System.String[] sdkToolCommand, Int32 emoryMB, System.String workingdir, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
推荐答案
如果在应用程序上执行jdeps，您将看到sun.misc.BASE64Encoder已被弃用，并且可以替换为 java.util.Base64 从JDK 1.8开始.
If you execute jdeps on your application, you would be able to see that sun.misc.BASE64Encoder has been deprecated and can be replaced with java.util.Base64 which is there since JDK 1.8.
迁移指南 也会阅读:
The migration guide reads this as well :
在您的情况下，由于您依赖第三方(android sdktools)，而第三方本身尚未解决此问题.恐怕您可能必须坚持使用1.8，与此同时，一旦他们计划迁移其工件，就可以将其报告给他们的跟踪器.
In your case, since you rely on third parties(android sdktools) which themselves haven't resolved this. I'm afraid you might have to stick with 1.8 and in the meanwhile, this can be reported to their trackers once they plan to migrate their artifacts.
当然，这还意味着您必须在某个时间点升级到使用他们的Java 9兼容版本的jar (如果他们计划何时发布).
Of course, this also means you would have to at some point in time upgrade to using their Java 9 compatible version of the jar if and when they plan to release.
更新 :可以在 Unity#956425 进行进一步更新
这篇关于Unity无法构建apk Android的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！