2019-04-12 emulator: ERROR: This AVD's configuration is missing a kernel file! Please ensure the file "kernel-qemu" is in the same location as your system image. Androidスタジオで下記のエラーが出る。誰か解決方法教えて下さい。 emulator: ERROR: This AVD's configuration is missing a kernel file! Please ensure the file "kernel-qemu" is in the same location as your system image. emulator: ERROR: ANDROID_SDK_ROOT is undefined