解決方案一：
The easiest solution is to move the SDK somewhere else, where there is no space or other whitespace character in the path, such as C:\Android\sdk. You can point both Android Studio installations to the new location.
解決方案二：
just change the path:
"c:\program files\android\sdk" to "c:\progra~1\android\sdk"
or
"c:\program files (x86)\android\sdk" to "c:\progra~2\android\sdk"
note that the paths should not contain spaces.
解決方案三：
There is another way:
Open up CMD (as Administrator)
Type: mklink /J C:\Program-Files "C:\Program Files" (Or in my case mklink /J C:\Program-Files-(x86) "C:\Program Files (x86)")
Hit enter
Magic happens! (Check your C drive)
Now you can point to C:\Program-Files (C:\Program-Files-(x86)).
最終采用方案三解決問題，最省力氣。
參考資料：
https://stackoverflow.com/questions/37052934/android-sdk-location-should-not-contain-whitespace-as-this-cause-problems-with