Example compilation error

[hamidrouhi]

Hi, I try to compile example, but get error:
duino15/packages/esp32/hardware/esp32/2.0.13/cores/esp32 -I/home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/variants/doitESP32devkitV1 -I/home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/libraries/FS/src -I/home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/libraries/SPI/src -I/home/hamid/.Arduino/libraries/TFT_eSPI -I/home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/libraries/SPIFFS/src -I/home/hamid/.Arduino/libraries/TFT_eFEX -I/home/hamid/.Arduino/libraries/JPEGDecoder/src -I/home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/libraries/SD/src /home/hamid/.Arduino/libraries/JPEGDecoder/src/JPEGDecoder.cpp -o /tmp/arduino/sketches/124410AA9F459AABD7AFF0E4F3A5CF29/libraries/JPEGDecoder/JPEGDecoder.cpp.o
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c: In function 'getExtendOffset':
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:375:27: warning: left shift of negative value [-Wshift-negative-value]
case 1: return ((-1)<<1) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:376:27: warning: left shift of negative value [-Wshift-negative-value]
case 2: return ((-1)<<2) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:377:27: warning: left shift of negative value [-Wshift-negative-value]
case 3: return ((-1)<<3) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:378:27: warning: left shift of negative value [-Wshift-negative-value]
case 4: return ((-1)<<4) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:379:27: warning: left shift of negative value [-Wshift-negative-value]
case 5: return ((-1)<<5) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:380:27: warning: left shift of negative value [-Wshift-negative-value]
case 6: return ((-1)<<6) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:381:27: warning: left shift of negative value [-Wshift-negative-value]
case 7: return ((-1)<<7) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:382:27: warning: left shift of negative value [-Wshift-negative-value]
case 8: return ((-1)<<8) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:383:27: warning: left shift of negative value [-Wshift-negative-value]
case 9: return ((-1)<<9) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:384:28: warning: left shift of negative value [-Wshift-negative-value]
case 10: return ((-1)<<10) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:385:28: warning: left shift of negative value [-Wshift-negative-value]
case 11: return ((-1)<<11) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:386:28: warning: left shift of negative value [-Wshift-negative-value]
case 12: return ((-1)<<12) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:387:28: warning: left shift of negative value [-Wshift-negative-value]
case 13: return ((-1)<<13) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:388:28: warning: left shift of negative value [-Wshift-negative-value]
case 14: return ((-1)<<14) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:389:28: warning: left shift of negative value [-Wshift-negative-value]
case 15: return ((-1)<<15) + 1;
^~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c: In function 'readSOSMarker':
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:685:57: error: variable 'successive_low' set but not used [-Werror=unused-but-set-variable]
uint8 spectral_start, spectral_end, successive_high, successive_low;
^~~~~~~~~~~~~~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:685:40: error: variable 'successive_high' set but not used [-Werror=unused-but-set-variable]
uint8 spectral_start, spectral_end, successive_high, successive_low;
^~~~~~~~~~~~~~~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:685:26: error: variable 'spectral_end' set but not used [-Werror=unused-but-set-variable]
uint8 spectral_start, spectral_end, successive_high, successive_low;
^~~~~~~~~~~~
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:685:10: error: variable 'spectral_start' set but not used [-Werror=unused-but-set-variable]
uint8 spectral_start, spectral_end, successive_high, successive_low;
^~~~~~~~~~~~~~
At top level:
/home/hamid/.Arduino/libraries/JPEGDecoder/src/picojpeg.c:1028:14: error: 'findEOI' defined but not used [-Werror=unused-function]
static uint8 findEOI(void)
^~~~~~~
cc1: some warnings being treated as errors

Using library FS at version 2.0.0 in folder: /home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/libraries/FS
Using library SPI at version 2.0.0 in folder: /home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/libraries/SPI
Using library TFT_eSPI at version 2.5.0 in folder: /home/hamid/.Arduino/libraries/TFT_eSPI
Using library SPIFFS at version 2.0.0 in folder: /home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/libraries/SPIFFS
Using library TFT_eFEX at version 0.0.8 in folder: /home/hamid/.Arduino/libraries/TFT_eFEX
Using library JPEGDecoder at version 1.8.1 in folder: /home/hamid/.Arduino/libraries/JPEGDecoder
Using library SD at version 2.0.0 in folder: /home/hamid/.arduino15/packages/esp32/hardware/esp32/2.0.13/libraries/SD
exit status 1

Compilation error: exit status 1