error while loading mobileproxy.aar

[namdroid]

at org.gradle.internal.execution.steps.IdentityCacheStep.lambda$executeDeferred$1(IdentityCacheStep.java:47)
... 64 more

Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: /Users/ng/ourapp/mobileproxy/build/.transforms/df48ac59d92bcf85652c00a0b7530c3b/transformed/instrumented_jetified-mobileproxy-runtime.jar:go/Seq$GoRefQueue$1.class at Version.fakeStackEntry(Version_4.0.52.java:0) at com.android.tools.r8.internal.vk.a(R8_4.0.52_5a340ca2823c7e792fe09805c75f749b9d398d230bc0518bb54ae9b6b50addbe:75)

.........

com.android.tools.r8.internal.vk.b(R8_4.0.52_5a340ca2823c7e792fe09805c75f749b9d398d230bc0518bb54ae9b6b50addbe:2) at com.android.tools.r8.D8.run(R8_4.0.52_5a340ca2823c7e792fe09805c75f749b9d398d230bc0518bb54ae9b6b50addbe:11) at com.android.builder.dexing.D8DexArchiveBuilder.convert(D8DexArchiveBuilder.java:120) ... 153 more Caused by: java.lang.NullPointerException

And:

Transform mobileproxy.aar (project :mobileproxy) with DexingNoClasspathTransform AGPBI: {"kind":"error","text":"java.lang.NullPointerException","sources":[{"file":"/Users/ng/ourapp/mobileproxy/mobileproxy/build/.transforms/df48ac59d92bcf85652c00a0b7530c3b/transformed/instrumented_jetified-mobileproxy-runtime.jar"}],"tool":"D8"}

Why NullPointerException ?

[jyyi1]

This might be caused by the incompatible JDK used by gomobile and your Android app. Please make sure you are using JDK 11 when building the app.e

[namdroid]

yes, the cause is that i have 2 different java versions. thanks