When compiling or uploading, the following error may occur:
Compilation error: Missing FQBN (Fully Qualified Board Name)
The error occurs if no board has been selected.
Note that a board needs to be selected even if you’re not uploading any code (i.e. clicking Verify).
With IDE 2, you can use the board selector menu:
- Connected boards that were identified by Arduino IDE will appear in the list.
- To manually select the board, or to select a board without connecting it, choose Select other board and port.
Alternatively, use the Tools > Board menu option:
See Select board and port in Arduino IDE to learn more.
Install missing boards
If you do not have the associated board core installed, you may receive the following pop-up.
In this case, choose Yes to install the required core.
To learn more about board installation, see Add boards to Arduino IDE.