When I use support library v22.2, I got following error.

Stacktrace: com.sun.tools.javac.code.Symbol$CompletionFailure: android.support.v4.app.DialogFragment$DialogStyleのクラス・ファイルが見つかりません

のクラス・ファイルが見つかりません is Class, File not found.

support.v4.app.DialogFragment on v22.1 or earlier seems to have private @interface DialogStyle {}
But it seems to be removed on v22.2.