Android Emulator: This AVD's configuration is missing a kernel file! + 2 other errors

Question

I recently set up android studio, and i began to develop some apps for TVOS, only to find that the emulator WILL NOT RUN. whenever i start the emulator, these errors appear.

12:37 PM    Emulator: emulator: ERROR: This AVD's configuration is missing a kernel file! Please ensure the file "kernel-ranchu" is in the same location as your system image.

12:37 PM    Emulator: emulator: ERROR: ANDROID_SDK_ROOT is undefined

12:37 PM    Emulator: Process finished with exit code 1

i've done all the basic stuff (updating the emulator, etc.) but nothing has worked so far.