Can not install Android ADT 21.1 on eclipse Juno (Windows 7) after upadate to SDK 21.1

Question

I have download ADT 21.1, and tried install it on eclipse

I got those:

Answer 1

I also confirm that this works (already mentioned by ing0)

In Eclipse (ADT)

Help --> Install New Software ---> Work with --> Android Developer Tools Update Site - http://dl-ssl.google.com/android/eclipse/

Select all of the updates you want to install and UNCHECK option "Contact all update sites during install to find required software". After that everything should install as it is mentioned to be.

Answer 2

In Eclipse, try:

Help > Install New Software

Then Choose the name you gave for https://dl-ssl.google.com/android/eclipse/ (working link)

Select the updates to install and then crucially, uncheck "Contact all update sites during install to find required software".

Answer 3

Select the updates to install and then crucially, uncheck "Contact all update sites during install to find required software"

I confirm that this answer by ing0 also works on Linux.