Android Studio quick documentation always “fetching documentation”

Question

I just move to Android studio from eclipse,I found that it always shows \"fetching documentation\" when I use quick documentation(Ctrl+Q),How to solve this?(I download docum

Answer 1

UPDATE: From unknown exactly version, just simply download Android Documentation in SDK Manager could fix the problem. My 3.4.1 do so.

But I don't know whether older version could works as well or not.