Esp-idf: Flashing Issue -couldn't open port (IDFGH-1582)

[Kartikkman]

kartik@kartik-ThinkPad-Edge-E530 ~/esp/myapp $ make flash Flashing binaries to serial port /dev/ttyUSB0 (app at offset 0x10000)... esptool.py v2.0.1 Traceback (most recent call last): File "/home/kartik/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2412, in <module> _main() File "/home/kartik/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2405, in _main main() File "/home/kartik/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2134, in main esp = chip_class(args.port, initial_baud) File "/home/kartik/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 175, in __init__ self._port = serial.serial_for_url(port) File "/usr/lib/python2.7/dist-packages/serial/__init__.py", line 85, in serial_for_url instance.open() File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 294, in open raise SerialException(msg.errno, "could not open port %s: %s" % (self._port, msg)) serial.serialutil.SerialException: [Errno 13] could not open port /dev/ttyUSB0: [Errno 13] Permission denied: '/dev/ttyUSB0' /home/kartik/esp/esp-idf/components/esptool_py/Makefile.projbuild:52: recipe for target 'flash' failed make: *** [flash] Error 1

[igrr]

Your user doesn't have access to /dev/ttyUSB0. You may try adding yourself to dialout group:

sudo usermod -a -G dialout $USER

Log out and then log back in after running this.

[FayeY]

Hi @Kartikkman , did the above suggestion help you resolve the issue?

[Kartikkman]

Hi , there was some connectivity problem b/w board & PC .
It is now resolved.

Thank you @FayeY , @iggr taking out your time to help me .

[wevilp]

非常感谢，问题已经解决了

[zuhaib446]

$ make flash Toolchain path: /opt/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc Toolchain version: crosstool-ng-1.22.0-80-g6c4433a5 Compiler version: 5.2.0 Python requirements from C:/msys32/home/zuhai/esp/esp-idf/requirements.txt are satisfied. App "hello-world" version: v3.3-beta1-99-ge2fbee9f9 Flashing binaries to serial port /dev/ttyUSB0 (app at offset 0x10000)... esptool.py v2.6-beta1 Serial port C:/msys32/dev/ttyUSB0 Traceback (most recent call last): File "C:/msys32/home/zuhai/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2865, in <module> _main() File "C:/msys32/home/zuhai/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2858, in _main main() File "C:/msys32/home/zuhai/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 2565, in main esp = chip_class(each_port, initial_baud, args.trace) File "C:/msys32/home/zuhai/esp/esp-idf/components/esptool_py/esptool/esptool.py", line 213, in __init__ self._port = serial.serial_for_url(port) File "C:/msys32/mingw32/lib/python2.7/site-packages/serial/__init__.py", line 88, in serial_for_url instance.open() File "C:/msys32/mingw32/lib/python2.7/site-packages/serial/serialwin32.py", line 62, in open raise SerialException("could not open port {!r}: {!r}".format(self.portstr, ctypes.WinError())) serial.serialutil.SerialException: could not open port 'C:/msys32/dev/ttyUSB0': WindowsError(2, 'The system cannot find the file specified.') make: *** [/home/zuhai/esp/esp-idf/components/esptool_py/Makefile.projbuild:63: flash] Error 1

[KonstantinKondrashov]

Hi @zuhaib446. On Windows, serial ports have names like COM1. https://docs.espressif.com/projects/esp-idf/en/latest/get-started/index.html#configure

[zuhaib446]

THANKS @KonstantinKondrashov

[henkiejan1]

For people who has also this isseu. Don´t forget to place a / before dev/ttyUSB0/ to it should be /dev/ttyUSB0/

[sultan95678]

@igrr how can i log out .?
i know how log in .