In file included from /Users/owen/Documents/Arduino/ESPixelStick/ESPixelStick.ino:46:0:
/Users/owen/Documents/Arduino/libraries/ESPAsyncE131/ESPAsyncE131.h: In function 'void loop()':
/Users/owen/Documents/Arduino/libraries/ESPAsyncE131/ESPAsyncE131.h:129:22: error: 'RingBuf* ESPAsyncE131::pbuff' is private
     RingBuf         *pbuff;     // Ring Buffer of universe packet buffers
                      ^
ESPixelStick:816: error: within this context
         if (!e131.pbuff->isEmpty(e131.pbuff)) {
                   ^
In file included from /Users/owen/Documents/Arduino/ESPixelStick/ESPixelStick.ino:46:0:
/Users/owen/Documents/Arduino/libraries/ESPAsyncE131/ESPAsyncE131.h:129:22: error: 'RingBuf* ESPAsyncE131::pbuff' is private
     RingBuf         *pbuff;     // Ring Buffer of universe packet buffers
                      ^
ESPixelStick:816: error: within this context
         if (!e131.pbuff->isEmpty(e131.pbuff)) {
                                       ^
In file included from /Users/owen/Documents/Arduino/ESPixelStick/ESPixelStick.ino:46:0:
/Users/owen/Documents/Arduino/libraries/ESPAsyncE131/ESPAsyncE131.h:129:22: error: 'RingBuf* ESPAsyncE131::pbuff' is private
     RingBuf         *pbuff;     // Ring Buffer of universe packet buffers
                      ^
ESPixelStick:817: error: within this context
             e131.pbuff->pull(e131.pbuff, &packet);
                  ^
In file included from /Users/owen/Documents/Arduino/ESPixelStick/ESPixelStick.ino:46:0:
/Users/owen/Documents/Arduino/libraries/ESPAsyncE131/ESPAsyncE131.h:129:22: error: 'RingBuf* ESPAsyncE131::pbuff' is private
     RingBuf         *pbuff;     // Ring Buffer of universe packet buffers
                      ^
ESPixelStick:817: error: within this context
             e131.pbuff->pull(e131.pbuff, &packet);
                                   ^
Multiple libraries were found for "ESP8266mDNS.h"
 Used: /Users/owen/Documents/Arduino/libraries/ESP8266mDNS
 Not used: /Users/owen/Library/Arduino15/packages/esp8266/hardware/esp8266/2.4.0-rc2/libraries/ESP8266mDNS
exit status 1
within this context