Paul,
That's good to know. I'll just ignore the message then. FWIW, I've also seen it from time to time with VS Code and PlatformIO also under Linux Mint 19.3.
Mark
I think I have successfully installed Tweensyduino into my Arduino IDE 1.8.13 installation on Linux Mint 19.3.
I selected Teensy 4.1 as the board. I loaded the blink sketch. With a Teensy 4.1 connected via USB, I clicked upload. The sketch compiled, the Teensy loader popped up and briefly...
I tried that by creating a soft link to the .arduino15 folder. That didn't work. By clicking on the ? button in the installer, it looks like the installer is looking for a file lib/version.txt which is not in the .arduino15 folder.
I unzipped the archive I downloaded from the Arduino.cc website...
I downloaded and installed Arduino IDE 1.8.13 (from the Arduino.cc website, not the repository) on Linux Mint 19.3. It is working fine and I have compiled lots of code for Arduino and ESP32 micro-controllers. I downloaded and updated the udev rules for Teensyduino. I downloaded and ran the...