After an update in the Android SDK Manager I find myself with Android SDK Tools r15 and my ant build stopped working saying:
/Users/me/myproject/android/build.xml:37: The following error occurred while executing this line:
/Users/me/android/tools/ant/pre_setup.xml:4: Your build.xml file is outdated. Delete it and regenerate it with 'android update
Aah right, let's update the project
$ android update project -p .
Exception in thread "main" java.lang.NullPointerException
Close Project > Organizer > Projects > Derived Data > Delete
Took me some time to figure out, where can you download PersistentConnectionLogging.mobileconfig?
Oh yeah, it's the top right button 'Companion File'
Why it's not a simple link in the text, is beyond me......