Im new with arduino here. anyone please tell wht's wrong with this coding

[arganeta]

Arduino: 1.8.19 (Windows 8.1), Board: "Arduino Uno"

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\satrio\Documents\Arduino\libraries -fqbn=arduino:avr:uno -ide-version=10819 -build-path C:\Users\satrio\AppData\Local\Temp\arduino_build_355383 -warnings=none -build-cache C:\Users\satrio\AppData\Local\Temp\arduino_cache_876986 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -verbose C:\Users\satrio\AppData\Local\Temp\arduino_modified_sketch_803122\sketch_jul15b.ino

C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\satrio\Documents\Arduino\libraries -fqbn=arduino:avr:uno -ide-version=10819 -build-path C:\Users\satrio\AppData\Local\Temp\arduino_build_355383 -warnings=none -build-cache C:\Users\satrio\AppData\Local\Temp\arduino_cache_876986 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -verbose C:\Users\satrio\AppData\Local\Temp\arduino_modified_sketch_803122\sketch_jul15b.ino

Using board 'uno' from platform in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr

Using core 'arduino' from platform in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr

Detecting libraries used...

"C:\Program Files (x86)\Arduino\hardware\tools\avr/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=10819 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard" "C:\Users\satrio\AppData\Local\Temp\arduino_build_355383\sketch\sketch_jul15b.ino.cpp" -o nul

Alternatives for LiquidCrystal.h: [LiquidCrystal@1.0.7]

ResolveLibrary(LiquidCrystal.h)

-> candidates: [LiquidCrystal@1.0.7]

"C:\Program Files (x86)\Arduino\hardware\tools\avr/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=10819 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard" "-IC:\Program Files (x86)\Arduino\libraries\LiquidCrystal\src" "C:\Users\satrio\AppData\Local\Temp\arduino_build_355383\sketch\sketch_jul15b.ino.cpp" -o nul

"C:\Program Files (x86)\Arduino\hardware\tools\avr/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=10819 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard" "-IC:\Program Files (x86)\Arduino\libraries\LiquidCrystal\src" "C:\Program Files (x86)\Arduino\libraries\LiquidCrystal\src\LiquidCrystal.cpp" -o nul

Generating function prototypes...

"C:\Program Files (x86)\Arduino\hardware\tools\avr/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=10819 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard" "-IC:\Program Files (x86)\Arduino\libraries\LiquidCrystal\src" "C:\Users\satrio\AppData\Local\Temp\arduino_build_355383\sketch\sketch_jul15b.ino.cpp" -o "C:\Users\satrio\AppData\Local\Temp\arduino_build_355383\preproc\ctags_target_for_gcc_minus_e.cpp"

"C:\Program Files (x86)\Arduino\tools-builder\ctags\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\Users\satrio\AppData\Local\Temp\arduino_build_355383\preproc\ctags_target_for_gcc_minus_e.cpp"

Compiling sketch...

"C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10819 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard" "-IC:\Program Files (x86)\Arduino\libraries\LiquidCrystal\src" "C:\Users\satrio\AppData\Local\Temp\arduino_build_355383\sketch\sketch_jul15b.ino.cpp" -o "C:\Users\satrio\AppData\Local\Temp\arduino_build_355383\sketch\sketch_jul15b.ino.cpp.o"

C:\Users\satrio\AppData\Local\Temp\arduino_modified_sketch_803122\sketch_jul15b.ino: In function 'void loop()':

sketch_jul15b:32:6: error: redefinition of 'void loop()'

void loop() {

  ^~~~

C:\Users\satrio\AppData\Local\Temp\arduino_modified_sketch_803122\sketch_jul15b.ino:23:6: note: 'void loop()' previously defined here

void loop() {

  ^~~~

Using library LiquidCrystal at version 1.0.7 in folder: C:\Program Files (x86)\Arduino\libraries\LiquidCrystal

exit status 1

redefinition of 'void loop()'

[shetland_siren]

You have 2 loop() functions: you're only allowed 1.

(Hence the error message: "redefinition....")

edit: I'll guess (since you didn't post your code) that you are trying to combine 2 programs and just copied them both into 1 file word-for-word? If so you need to check a tutorial on how to do that properly, such as this one; there are others.

[arganeta]

ahh i see. trims

[shetland_siren]

@arganeta

trims

No idea what that means.