Arduino: 1.8.13 (Linux), Board: "Arduino Uno" arduino-builder -dump-prefs -logger=machine -hardware /usr/share/arduino/hardware -hardware /home/pi/.arduino15/packages -tools /usr/share/arduino/hardware/tools/avr -tools /home/pi/.arduino15/packages -libraries /home/pi/Arduino/libraries -fqbn=arduino:avr:uno -vid-pid=2341_0043 -ide-version=10813 -build-path /tmp/arduino_build_57341 -warnings=none -build-cache /tmp/arduino_cache_73202 -prefs=build.warn_data_percentage=75 -verbose /home/pi/DuinoCoinI2C-main/DuinoCoin_Arduino_Slave/DuinoCoin_Arduino_Slave.ino arduino-builder -compile -logger=machine -hardware /usr/share/arduino/hardware -hardware /home/pi/.arduino15/packages -tools /usr/share/arduino/hardware/tools/avr -tools /home/pi/.arduino15/packages -libraries /home/pi/Arduino/libraries -fqbn=arduino:avr:uno -vid-pid=2341_0043 -ide-version=10813 -build-path /tmp/arduino_build_57341 -warnings=none -build-cache /tmp/arduino_cache_73202 -prefs=build.warn_data_percentage=75 -verbose /home/pi/DuinoCoinI2C-main/DuinoCoin_Arduino_Slave/DuinoCoin_Arduino_Slave.ino Using board 'uno' from platform in folder: /usr/share/arduino/hardware/arduino/avr Using core 'arduino' from platform in folder: /usr/share/arduino/hardware/arduino/avr Detecting libraries used... "/usr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/usr/share/arduino/hardware/arduino/avr/cores/arduino" "-I/usr/share/arduino/hardware/arduino/avr/variants/standard" "/tmp/arduino_build_57341/sketch/DuinoCoin_Arduino_Slave.ino.cpp" -o "/dev/null" "/usr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/usr/share/arduino/hardware/arduino/avr/cores/arduino" "-I/usr/share/arduino/hardware/arduino/avr/variants/standard" "-I/usr/share/arduino/hardware/arduino/avr/libraries/Wire/src" "/tmp/arduino_build_57341/sketch/DuinoCoin_Arduino_Slave.ino.cpp" -o "/dev/null" "/usr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/usr/share/arduino/hardware/arduino/avr/cores/arduino" "-I/usr/share/arduino/hardware/arduino/avr/variants/standard" "-I/usr/share/arduino/hardware/arduino/avr/libraries/Wire/src" "-I/home/pi/Arduino/libraries/arduino-DuinoCoin-1.0/src" "/tmp/arduino_build_57341/sketch/DuinoCoin_Arduino_Slave.ino.cpp" -o "/dev/null" "/usr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/usr/share/arduino/hardware/arduino/avr/cores/arduino" "-I/usr/share/arduino/hardware/arduino/avr/variants/standard" "-I/usr/share/arduino/hardware/arduino/avr/libraries/Wire/src" "-I/home/pi/Arduino/libraries/arduino-DuinoCoin-1.0/src" "-I/home/pi/Arduino/libraries/ArduinoUniqueID-1.2.0/src" "/tmp/arduino_build_57341/sketch/DuinoCoin_Arduino_Slave.ino.cpp" -o "/dev/null" "/usr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/usr/share/arduino/hardware/arduino/avr/cores/arduino" "-I/usr/share/arduino/hardware/arduino/avr/variants/standard" "-I/usr/share/arduino/hardware/arduino/avr/libraries/Wire/src" "-I/home/pi/Arduino/libraries/arduino-DuinoCoin-1.0/src" "-I/home/pi/Arduino/libraries/ArduinoUniqueID-1.2.0/src" "/tmp/arduino_build_57341/sketch/DuinoCoin_Arduino_Slave.ino.cpp" -o "/tmp/arduino_build_57341/preproc/ctags_target_for_gcc_minus_e.cpp" In file included from /home/pi/Arduino/libraries/arduino-DuinoCoin-1.0/src/sha1/sha1/sha1.h:4:0, from /home/pi/Arduino/libraries/arduino-DuinoCoin-1.0/src/sha1/Ducos1a_sha1.h:4, from /home/pi/Arduino/libraries/arduino-DuinoCoin-1.0/src/Ducos1a.h:7, from /home/pi/Arduino/libraries/arduino-DuinoCoin-1.0/src/DuinoCoin.h:6, from /home/pi/DuinoCoinI2C-main/DuinoCoin_Arduino_Slave/DuinoCoin_Wire.ino:8: /home/pi/Arduino/libraries/arduino-DuinoCoin-1.0/src/sha1/sha1/sha1_config.h:13:22: fatal error: arduino.h: No such file or directory compilation terminated. Using library Wire at version 1.0 in folder: /usr/share/arduino/hardware/arduino/avr/libraries/Wire Using library arduino-DuinoCoin-1.0 at version 1.0.1 in folder: /home/pi/Arduino/libraries/arduino-DuinoCoin-1.0 Using library ArduinoUniqueID-1.2.0 at version 1.2.0 in folder: /home/pi/Arduino/libraries/ArduinoUniqueID-1.2.0 exit status 1 Error compiling for board Arduino Uno.