Tried again, this time with Android Studio 2.1. It is again stuck in some kind of .h file. I left it as it was, and after about 30 minutes the decompression was completed successfully, and the NDK was updated.
I have a problem with a similar problem every time I update NDK. You may have to wait until 2 hours, but in the end it will be updated.
Akeshwar jha
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