Thank you for replies.
I had fixed the source.
#ifdef POT_USE --> #ifdef USE_POT
and commented out.
//#USE_POT --> #USE_POT
Then compiled, uploaded and ran the sketch.
I could confirm analogRead() and hue values from the serial monitor, but ledstrip color did't change.
I wander that FastLED.show() doesn't work correctly after analogread() was called.