I've update Android Studio to 0.9, build tools to 21.1.0 and gradle to 0.14 because I want to use the new multiDexEnabled true feature. Currently I'm managing the multidex using this approach https://github.com/casidiablo/multidex and everything is working, but the multiDexEnabled feature seems better.
But using gradle 0.14 I've got this error : uses-sdk element cannot have a "tools:node" attribute which I "solved" using the solution posted by @Medo.
But if I use this approach the multiDexEnabled won't work , and I'll get this error:
Error:A problem was found with the configuration of task ':participactclient:collectDebugMultiDexComponents'.
File '/Users/danielecampogiani/Developing/Android/Android Studio/Participact Client/participactclient/build/intermediates/manifests/full/debug/AndroidManifest.xml' specified for property 'manifest' does not exist.
How to solve this?