An error occurred while uploading the sketch.

alamgir:
my code do not upload ardunio ch340g com3 plz tel me about somthing this situation i can not undrestand

Please do this:

  • File > Preferences > Show verbose output during: > compilation (uncheck) > upload (check) > OK
  • Sketch > Upload
  • After the upload fails you'll see a button on the right side of the orange bar "Copy error messages". Click that button.
  • Paste the error messages in a reply here USING CODE TAGS (</> button on the toolbar).

board wemmos d1 r1
the board was working just fine and for no reason
when i try to upload a sketch this error ocures.
Arduino: 1.8.5 (Windows Store 1.8.10.0) (Windows 10), Placa:"WeMos D1 R1, 80 MHz, 4M (1M SPIFFS), v2 Lower Memory, Disabled, None, Only Sketch, 115200"

Archiving built core (caching) in: C:\Users\migue\AppData\Local\Temp\arduino_cache_475616\core\core_esp8266_esp8266_d1_CpuFrequency_80,FlashSize_4M1M,LwIPVariant_v2mss536,Debug_Disabled,DebugLevel_None____,FlashErase_none,UploadSpeed_115200_a2f4ecf09cad4f35b9a1d504fdc62c4d.a
O rascunho usa 246311 bytes (23%) do espaço de armazenamento do programa. O máximo é 1044464 bytes.
Variáveis globais usam 32260 bytes (39%) de memória dinâmica, restando 49660 bytes para variáveis locais. O maximo é 81920 bytes.

warning: espcomm_sync failed
Ocorreu um erro a enviar o rascunho
error: espcomm_open failed
error: espcomm_upload_mem failed

the error appeared after attempting to connect the Arduino to the intellij ide, I already reinstalled the arduino ide already reinstalled the software of the usb controller and nothing need help !!!

I have the same error, when I was testing it I found that it was the bluetooth module, for some reason if it is to the current to program my Arduino gave me that error, my solution was to program the Arduino UNO without a connected module and it worked.

Arduino: 1.8.6 Hourly Build 2018/06/12 11:33 (Windows 10), Board: "Arduino/Genuino Uno"

Archiving built core (caching) in: C:\Users\User\AppData\Local\Temp\arduino_cache_612582\core\core_arduino_avr_uno_0f0e1c1ce3aab4721bccdf17013314bd.a
Sketch uses 724 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
D:\softwares\arduino-nightly-windows\arduino-nightly\hardware\tools\avr/bin/avrdude -CD:\softwares\arduino-nightly-windows\arduino-nightly\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM3 -b115200 -D -Uflash:w:C:\Users\User\AppData\Local\Temp\arduino_build_859312/sketch_jun20a.ino.hex:i

avrdude: Version 6.3-20171130
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch

System wide configuration file is "D:\softwares\arduino-nightly-windows\arduino-nightly\hardware\tools\avr/etc/avrdude.conf"

Using Port : COM3
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xdb
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xdb

avrdude done. Thank you.

Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

THIS IS MY PROBLEM
PLEASE HELP...

Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 444 bytes (1%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: ser_open(): can't open device "\.\COM1": The system cannot find the file specified.

Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

sir i am getting the error while i tried to upload the empty loops to reset my arduino board.

pnkz:
avrdude: ser_open(): can't open device "\.\COM1": The system cannot find the file specified.

Select the port of your Arduino from the Tools > Port menu. If that menu is grayed out or the port of your Arduino board is not shown then one of the following may be the cause:

  • You may need to install the driver for the USB-serial chip on your Arduino. Determine which chip is used on your Arduino and install the driver.
  • You may be using a charge-only or defective USB cable. Test your cable on another device to confirm that it works for data.

Please help. I am getting this error when uploading my sketch on Uno.

Arduino: 1.8.5 (Windows Store 1.8.10.0) (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 928 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: ser_open(): can't set com-state for "\.\COM3"
An error occurred while uploading the sketch

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 938 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: ser_open(): can't open device "\.\COM4": The system cannot find the file specified.

Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

// this is my error

@mike12345

Are you using USB 2.0 or 3.0 ports and cables as Arduinos can be very hit and miss with USB 3.0 ?

Changing cables and ports is always a first stop in troubleshooting.

Arduino: 1.8.6 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 930 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x44
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

need help

Arduino: 1.8.6 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 930 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x44
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x44
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Google is your friend

Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno"

Archiving built core (caching) in: C:\Users\Ivan\AppData\Local\Temp\arduino_cache_304496\core\core_arduino_avr_uno_0c812875ac70eb4a9b385d8fb077f54c.a
Sketch uses 960 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM3 -b115200 -D -Uflash:w:C:\Users\Ivan\AppData\Local\Temp\arduino_build_521870/sketch_sep15c.ino.hex:i

avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch

System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

Using Port : COM3
Using Programmer : arduino
Overriding Baud Rate : 115200
An error occurred while uploading the sketch
avrdude: ser_open(): can't set com-state for "\.\COM3"

avrdude done. Thank you.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

@DarkZero987

Is that a comment or a question ?

pert:
Please do this:

  • File > Preferences > Show verbose output during: > compilation (uncheck) > upload (check) > OK
  • Sketch > Upload
  • After the upload fails you'll see a button on the right side of the orange bar "Copy error messages". Click that button.
  • Paste the error messages in a reply here USING CODE TAGS (</> button on the toolbar).

it'll be great if i could get some help too

< Arduino: 1.8.7 (Mac OS X), Board: "Arduino/Genuino Uno"

Sketch uses 4300 bytes (13%) of program storage space. Maximum is 32256 bytes.
Global variables use 239 bytes (11%) of dynamic memory, leaving 1809 bytes for local variables. Maximum is 2048 bytes.
/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr/bin/avrdude -C/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf -v -patmega328p -carduino -P/dev/cu.usbmodem1421 -b115200 -D -Uflash:w:/var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch_dec15a.ino.hex:i

avrdude: Version 6.3-20171130
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch

System wide configuration file is "/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf"
User configuration file is "/Users/ifrahs/.avrduderc"
User configuration file does not exist or is not a regular file, skipping

Using Port : /dev/cu.usbmodem1421
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: ser_open(): can't open device "/dev/cu.usbmodem1421": No such file or directory

avrdude done. Thank you.

Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
/>

i'm using a DHT11 humidity sensor, my cable works as i have tried before i just have no idea why its giving me errors

i posted a query earlier with error message from " file>preferences>upload(checked)"

this is with 'compilation (checked)'

</>
Arduino: 1.8.7 (Mac OS X), Board: "Arduino/Genuino Uno"

/Applications/Arduino 2.app/Contents/Java/arduino-builder -dump-prefs -logger=machine -hardware /Applications/Arduino 2.app/Contents/Java/hardware -tools /Applications/Arduino 2.app/Contents/Java/tools-builder -tools /Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -built-in-libraries /Applications/Arduino 2.app/Contents/Java/libraries -libraries /Users/ifrahs/Documents/Arduino/libraries -fqbn=arduino:avr:uno -ide-version=10807 -build-path /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303 -warnings=none -build-cache /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_cache_725994 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avrdude-6.3.0-arduino14.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA-1.2.1.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc-5.4.0-atmel3.6.1-arduino2.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -verbose /Users/ifrahs/Documents/Arduino/sketch_dec15a/sketch_dec15a.ino
/Applications/Arduino 2.app/Contents/Java/arduino-builder -compile -logger=machine -hardware /Applications/Arduino 2.app/Contents/Java/hardware -tools /Applications/Arduino 2.app/Contents/Java/tools-builder -tools /Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -built-in-libraries /Applications/Arduino 2.app/Contents/Java/libraries -libraries /Users/ifrahs/Documents/Arduino/libraries -fqbn=arduino:avr:uno -ide-version=10807 -build-path /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303 -warnings=none -build-cache /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_cache_725994 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avrdude-6.3.0-arduino14.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA-1.2.1.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc-5.4.0-atmel3.6.1-arduino2.path=/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr -verbose /Users/ifrahs/Documents/Arduino/sketch_dec15a/sketch_dec15a.ino
Using board 'uno' from platform in folder: /Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr
Using core 'arduino' from platform in folder: /Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr
Detecting libraries used...
"/Applications/Arduino 2.app/Contents/Java/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=10807 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr/variants/standard" /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch/sketch_dec15a.ino.cpp -o /dev/null
"/Applications/Arduino 2.app/Contents/Java/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=10807 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr/variants/standard" -I/Users/ifrahs/Documents/Arduino/libraries/DHTLib /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch/sketch_dec15a.ino.cpp -o /dev/null
Using cached library dependencies for file: /Users/ifrahs/Documents/Arduino/libraries/DHTLib/dht.cpp
Generating function prototypes...
"/Applications/Arduino 2.app/Contents/Java/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=10807 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr/variants/standard" -I/Users/ifrahs/Documents/Arduino/libraries/DHTLib /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch/sketch_dec15a.ino.cpp -o /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/preproc/ctags_target_for_gcc_minus_e.cpp
"/Applications/Arduino 2.app/Contents/Java/tools-builder/ctags/5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/preproc/ctags_target_for_gcc_minus_e.cpp
Compiling sketch...
"/Applications/Arduino 2.app/Contents/Java/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=10807 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-I/Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr/cores/arduino" "-I/Applications/Arduino 2.app/Contents/Java/hardware/arduino/avr/variants/standard" -I/Users/ifrahs/Documents/Arduino/libraries/DHTLib /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch/sketch_dec15a.ino.cpp -o /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch/sketch_dec15a.ino.cpp.o
Compiling libraries...
Compiling library "DHTLib"
Using previously compiled file: /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/libraries/DHTLib/dht.cpp.o
Compiling core...
Using precompiled core: /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_cache_725994/core/core_arduino_avr_uno_a44201f00637cc7de5d2873b25582122.a
Linking everything together...
"/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr/bin/avr-gcc" -w -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega328p -o /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch_dec15a.ino.elf /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch/sketch_dec15a.ino.cpp.o /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/libraries/DHTLib/dht.cpp.o /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/../arduino_cache_725994/core/core_arduino_avr_uno_a44201f00637cc7de5d2873b25582122.a -L/var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303 -lm
"/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr/bin/avr-objcopy" -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch_dec15a.ino.elf /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch_dec15a.ino.eep
"/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr/bin/avr-objcopy" -O ihex -R .eeprom /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch_dec15a.ino.elf /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch_dec15a.ino.hex
Using library DHTLib in folder: /Users/ifrahs/Documents/Arduino/libraries/DHTLib (legacy)
"/Applications/Arduino 2.app/Contents/Java/hardware/tools/avr/bin/avr-size" -A /var/folders/4j/p2g4zhc94990rcsc7khsbyrh0000gn/T/arduino_build_479303/sketch_dec15a.ino.elf
Sketch uses 4300 bytes (13%) of program storage space. Maximum is 32256 bytes.
Global variables use 239 bytes (11%) of dynamic memory, leaving 1809 bytes for local variables. Maximum is 2048 bytes.
avrdude: ser_open(): can't open device "/dev/cu.usbmodem1421": No such file or directory
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
</>

Arduino: 1.8.5 (Windows 7), Board: "Arduino/Genuino Uno"

Sketch uses 1998 bytes (6%) of program storage space. Maximum is 32256 bytes.
Global variables use 189 bytes (9%) of dynamic memory, leaving 1859 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_recv(): programmer is not responding
An error occurred while uploading the sketch
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xd8
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xd8

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

SEND HELP
i'm heckin lost please help

Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 1806 bytes (5%) of program storage space. Maximum is 32256 bytes.
Global variables use 51 bytes (2%) of dynamic memory, leaving 1997 bytes for local variables. Maximum is 2048 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM4 -b115200 -D -Uflash:w:C:\Users\Isaac\AppData\Local\Temp\arduino_build_127520/Slots_test.ino.hex:i 

avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

         Using Port                    : COM4
         Using Programmer              : arduino
         Overriding Baud Rate          : 115200
avrdude: ser_open(): can't open device "\\.\COM4": The system cannot find the file specified.



avrdude done.  Thank you.

Problem uploading to board.  See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

ThePyroManiac:
SEND HELP
i'm heckin lost please help

Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 1806 bytes (5%) of program storage space. Maximum is 32256 bytes.
Global variables use 51 bytes (2%) of dynamic memory, leaving 1997 bytes for local variables. Maximum is 2048 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM4 -b115200 -D -Uflash:w:C:\Users\Isaac\AppData\Local\Temp\arduino_build_127520/Slots_test.ino.hex:i

avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53
        Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
        Copyright (c) 2007-2014 Joerg Wunsch

System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

Using Port                    : COM4
        Using Programmer              : arduino
        Overriding Baud Rate          : 115200
avrdude: ser_open(): can't open device "\.\COM4": The system cannot find the file specified.

avrdude done.  Thank you.

Problem uploading to board.  See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Incorrect port selected. Select a port from tools -> port menu; it's got COM4 selected (which presumably you used previously), but it's saying that there is no COM4. Windows will often assign a different port number depending on which USB port a device is plugged into (and occasionally for no apparent reason), so you just need to select the correct port.

Hi,

I had the same problem and i just went to Tools+Port, and then selected the one that showed Arduino Genuino/UNO, in my case (i switched from port 13 to port 20).
It worked.

Regrads,