Getting Installed android SDK Packages


I was using unity 5.6.1 in 32 bit windows OS.I was developing a game for android every thing works fine in the 32 bit version.But recently moved the project to another system which has 64 bit OS and tried to open the project and one pop up window came saying that “Getting Installed android SDK Packages” after this unity stops responding.What should i do to get things working in the 64 bit?
Thanks in advance.104774-querying-android-sdk-packages.png

As far as I know, you don’t need to install anything related to SDK, you just provide path in preference.