问题
i updated Android Studio 2.2 Preview 1, with oracle JDK 8u91.
in the IDE, many errors are shown, such as: unused import (gray underline), cannot find reference (red characters), etc. but the compilation to APK is ok...
anyone any ideas?
来源：https://stackoverflow.com/questions/37336621/android-studio-2-2-preview-1-shows-many-errors-in-the-ide-but-compilation-is-ok