环境变量的设置好了，为啥还是不行啊·

代码
CommandInvokationFailure: Failed to build apk.
D:/Program Files/Java/jdk-12.0.1\bin\java.exe -Xmx2048M -Dcom.android.sdkmanager.toolsdir="D:/Android/android-sdk-windows\tools" -Dfile.encoding=UTF8 -jar "D:\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:567)
at SDKMain.main(SDKMain.java:130)
Caused by: java.lang.NoClassDefFoundError: sun/misc/BASE64Encoder
at com.android.sdklib.internal.build.SignedJarBuilder.(SignedJarBuilder.java:177)
at com.android.sdklib.build.ApkBuilder.init(ApkBuilder.java:446)
at com.android.sdklib.build.ApkBuilder.(ApkBuilder.java:422)
at com.android.sdklib.build.ApkBuilder.(ApkBuilder.java:362)
at UnityApkBuilder.(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:436)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 11 more
]
stdout[

]
exit code: 1
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 memoryMB, System.String workingdir, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.AndroidSDKTools.RunCommandSafe (System.String javaExe, System.String sdkToolsDir, System.String[] sdkToolCommand, Int32 memoryMB, System.String workingdir, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.HostView:OnGUI()

java.lang.ClassNotFoundException: sun.misc.BASE64Encoder
没有找到这个类，少jar包，或者android api版本设置错误

Caused by: java.lang.NoClassDefFoundError: sun/misc/BASE64Encoder 看这句话应该是提示你少这个class 应该是缺少引入的依赖吧 这方面你可以排查一下

jdk版本是不是太高了