Iam using upgraded version of ADT only but Adt is creating problem while creating new project,not able to create new Activity also

Iam using upgraded version of ADT only but Adt is creating problem while creating new project,not able to create new Activity also

Read this page http://developer.android.com/sdk/installing/installing-adt.html#Troubleshooting
do the offline upgrade.
Download from http://dl-ssl.google.com/android/repository/tools_r22.2-windows.zip, unzip it and replace the /tools folder with this one to downgrade the sdk tools. There's a bug in version 22.2.
For Mac http://dl-ssl.google.com/android/repository/tools_r22.2-macosx.zip
For Linux: http://dl-ssl.google.com/android/repository/tools_r22.2-linux.zip