avrdude can't open correct COM device, but works in Arduino IDE · Issue #856 · Sloeber/arduino-eclipse-plugin · GitHub
![Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow](https://i.stack.imgur.com/1kNPb.png)
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
![avrdude: ser_open(): can't open device "\\.\COM1": The system cannot find the file specified. ERROR - YouTube avrdude: ser_open(): can't open device "\\.\COM1": The system cannot find the file specified. ERROR - YouTube](https://i.ytimg.com/vi/RontAqKN7_Y/hqdefault.jpg?sqp=-oaymwEmCOADEOgC8quKqQMa8AEB-AGcBIAC4AOKAgwIABABGBEgbihyMA8=&rs=AOn4CLCImO3gVlfmsbdu3zVcXpUpPEb4vA)
avrdude: ser_open(): can't open device "\\.\COM1": The system cannot find the file specified. ERROR - YouTube
![Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it. Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.](https://gyorgybalassy.files.wordpress.com/2020/10/arduino-port-selection.png)
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
![avrdude: ser_open(): can't open device "\\.\COM7": Access denied. - Installation & Troubleshooting - Arduino Forum avrdude: ser_open(): can't open device "\\.\COM7": Access denied. - Installation & Troubleshooting - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/e/8/0/e807ffa7e6105054c5150025a15a01ee1bee10bd_2_690x387.png)
avrdude: ser_open(): can't open device "\\.\COM7": Access denied. - Installation & Troubleshooting - Arduino Forum
![ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community](https://community.platformio.org/uploads/default/original/2X/5/5274b3594ce67a69c4e18e17542bb48628341be8.png)
ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community
![dobročinnosť tehotná vyjednávať avrdude ser_open can t open device com3 predpojatosť obsiahly námorná míľa dobročinnosť tehotná vyjednávať avrdude ser_open can t open device com3 predpojatosť obsiahly námorná míľa](https://mblogthumb-phinf.pstatic.net/20160522_206/chandong83_1463926715069IDJr6_PNG/%C1%A6%B8%F1_%BE%F8%C0%BD12png.png?type=w420)
dobročinnosť tehotná vyjednávať avrdude ser_open can t open device com3 predpojatosť obsiahly námorná míľa
![vydržať Arthur Conan Doyle tyran avrdude ser_open can't open device com3 usb 2.0 Choďte preč odpustiť špinavý vydržať Arthur Conan Doyle tyran avrdude ser_open can't open device com3 usb 2.0 Choďte preč odpustiť špinavý](https://i.stack.imgur.com/0iUf6.png)
vydržať Arthur Conan Doyle tyran avrdude ser_open can't open device com3 usb 2.0 Choďte preč odpustiť špinavý
![ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community](https://community.platformio.org/uploads/default/original/2X/b/bd7659971b80c6b291c18cd8e7356c73ea50bb62.png)
ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community
![Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it. Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.](https://gyorgybalassy.files.wordpress.com/2020/10/arduino-serial-port-in-device-manager.png)
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
avrdude: ser_open(): can't open device "\\.\COM4": Access is denied. · Issue #525 · platformio/platformio-core · GitHub
![avrdude: ser_open(): can't open device "\\.\COM5": access denied. - Installation & Troubleshooting - Arduino Forum avrdude: ser_open(): can't open device "\\.\COM5": access denied. - Installation & Troubleshooting - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/6/3/a/63a61243382b3de443cf81791219bf121cbc54cb.png)
avrdude: ser_open(): can't open device "\\.\COM5": access denied. - Installation & Troubleshooting - Arduino Forum
![dobročinnosť tehotná vyjednávať avrdude ser_open can t open device com3 predpojatosť obsiahly námorná míľa dobročinnosť tehotná vyjednávať avrdude ser_open can t open device com3 predpojatosť obsiahly námorná míľa](https://mblogthumb-phinf.pstatic.net/20160522_237/chandong83_1463925916184xBK61_PNG/%C1%A6%B8%F1_%BE%F8%C0%BD6.png?type=w420)
dobročinnosť tehotná vyjednávať avrdude ser_open can t open device com3 predpojatosť obsiahly námorná míľa
![vydržať Arthur Conan Doyle tyran avrdude ser_open can't open device com3 usb 2.0 Choďte preč odpustiť špinavý vydržať Arthur Conan Doyle tyran avrdude ser_open can't open device com3 usb 2.0 Choďte preč odpustiť špinavý](https://cdn.sparkfun.com/assets/learn_tutorials/6/1/Arduino_COM_Port_Permissions_Error_Linux.png)