JDK not found

Unity Engine
1

I am working on a project at Unity 2019.4.3f1 with Vuforia 9.3.3, It works ok on my PC but when tried to build to Android platform, it said ‘JDK not found’. I tired installed the jdk -8u261 and set the path at Preferences-External Tools but NO luck !! Can anyone help anything I missed ??

2

Also, Andorid SDK and Andorid NDK not found !!! Please help to point out where i can get it. Thanks

3

Maybe the wrong path? Or permission issue if you are not an administrator of the PC? Wrong version?
Lack of information.
Install NDK and JDK through Unity Hub or installer. If you install them separately, Unity may not recognize them.