The Sdk r22 problem

i know there are some threads about the problem unity has working with the revision 22 of android sdk tools. As a beginner , i've done evreything i could from installing reinstalling updating and downgrading the tools for like a week now. if i use r22 it gives me this error

Error building Player: Win32Exception: ApplicationName='D:/Android r21/platforms/android-19\aapt.exe', CommandLine='package -v -f -m -J gen -M AndroidManifest.xml -S "res" -I "D:/Android r21/platforms/android-19\android.jar" -F bin/resources.ap_', CurrentDirectory='Temp/StagingArea'

i cant use r21 , because when i try to download the packages for building it says it depends on installing Sdk Platform tools rev 19.0.1 and when i try to install that it goes to 100% and it's still "not installed" please somebody help me i am toally going crazy

 

Are you able to upgrade to Unity 4.1.4?

http://unity3d.com/unity/whats-new/unity-4.1.4

 

It is some kind of glitch of Updating to the latest sdk from android. What I would recommend, the easy way, is to delete all your sdks and download the whole latest package from android dev web site and install that one.