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Software Support
Get help using Arduino IDE to write and upload sketches.
Arduino App Lab
- Migrating to Zephyr core 0.55.0 on UNO Q
- About automatic updates in Arduino App Lab
- If Arduino App Lab shows an "Error checking for updates" message
- Code repositories for Arduino App Lab components
- If App Lab does not open on Linux
- Manually update Arduino App Lab
IDE Settings
- Select programmer in Arduino IDE
- Run arduino_debug.exe (Windows)
- If your board runs the sketch twice
- About mdns-discovery
- Find sketches, libraries, board cores, and other files on your computer
- Open the Sketchbook folder
Installation
- Supported versions of Arduino IDE
- If you get an "dlopen(): error loading libfuse.so.2" error
- Error "bad CPU type in executable" on macOS
- Add libraries to Arduino IDE
- Install or update FTDI drivers
- Uninstall boards from Arduino IDE
Compilation
- Compilation error: Invalid FQBN: board "X" not found
- Errors when compiling for an ESP32 board with esp32 board package 2.0.10 on Windows or Linux
- Improve compilation time with Arduino IDE
- Compilation error: Missing FQBN (Fully Qualified Board Name)
- Build failed for project 'ArduinoIoTCloud-Basic' using an ESP8266
- Error: Multiple libraries were found
Upload
- If your board is not detected by Arduino IDE
- If your sketch doesn't upload
- If there are "Unknown" devices in the board selector or ports without a board name in the Tools > Port menu
- avrdude: ser_open(): can't set com-state for COMn
- If Arduino IDE detects a different board than the one you've connected
- dfu-util errors when uploading (exit status 74)
