![Failed to open serial port /dev/ttyUSB0 due to error: + TypeError: Cannot read property 'close' of null · Issue #774 · microsoft/vscode-arduino · GitHub Failed to open serial port /dev/ttyUSB0 due to error: + TypeError: Cannot read property 'close' of null · Issue #774 · microsoft/vscode-arduino · GitHub](https://user-images.githubusercontent.com/43513999/76292835-8616e600-62e2-11ea-95bc-0662cc564f18.png)
Failed to open serial port /dev/ttyUSB0 due to error: + TypeError: Cannot read property 'close' of null · Issue #774 · microsoft/vscode-arduino · GitHub
![18.04 - Uploading code to arduino gives me the error: "avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied" - Ask Ubuntu 18.04 - Uploading code to arduino gives me the error: "avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied" - Ask Ubuntu](https://i.stack.imgur.com/ifRmx.png)
18.04 - Uploading code to arduino gives me the error: "avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied" - Ask Ubuntu
Could not open port /dev/ttyUSB0: [Errno 2] No such file or directory: '/dev /ttyUSB0' · Issue #137 · brendan-w/python-OBD · GitHub
![avrdude: ser_open(): can't open device "/dev/ttyUSB0": Permission denied - Installation & Troubleshooting - Arduino Forum avrdude: ser_open(): can't open device "/dev/ttyUSB0": Permission denied - Installation & Troubleshooting - Arduino Forum](https://aws1.discourse-cdn.com/arduino/original/4X/1/9/4/1946268d87a8de7063b9ca307eba5fd2c1991b22.png)
avrdude: ser_open(): can't open device "/dev/ttyUSB0": Permission denied - Installation & Troubleshooting - Arduino Forum
Could not open port /dev/ttyUSB0: [Errno 2] No such file or directory: '/dev /ttyUSB0' · Issue #137 · brendan-w/python-OBD · GitHub
![PuTTY can access serial port as /dev/ttyUSB0, but not as named udev device - Unix & Linux Stack Exchange PuTTY can access serial port as /dev/ttyUSB0, but not as named udev device - Unix & Linux Stack Exchange](https://i.stack.imgur.com/vYXzk.png)
PuTTY can access serial port as /dev/ttyUSB0, but not as named udev device - Unix & Linux Stack Exchange
![usb device - How can I set up a "USB proxy" for /dev/ttyUSB0 over the network? - Unix & Linux Stack Exchange usb device - How can I set up a "USB proxy" for /dev/ttyUSB0 over the network? - Unix & Linux Stack Exchange](https://i.stack.imgur.com/TMjlC.png)