Error to compile the firmware.

[Levi Barrocas]

It's probably my mistake somewhere BUT when I try to compile I am getting this issue.

Flatbox.ino: In function 'void sendReport()':

Flatbox:192:5: error: 'HID' was not declared in this scope

     HID().SendReport(1, &report, sizeof(report));

     ^~~

Flatbox.ino:192:5: note: suggested alternative: 'PIND'

     HID().SendReport(1, &report, sizeof(report));

     ^~~

     PIND

Flatbox.ino: In function 'void setup()':

Flatbox:198:10: error: 'HIDSubDescriptor' does not name a type; did you mean 'hidReportDescriptor'?

   static HIDSubDescriptor node(hidReportDescriptor, sizeof(hidReportDescriptor));

          ^~~~~~~~~~~~~~~~

          hidReportDescriptor

Flatbox:199:3: error: 'HID' was not declared in this scope

   HID().AppendDescriptor(&node);

   ^~~

Flatbox.ino:199:3: note: suggested alternative: 'PIND'

   HID().AppendDescriptor(&node);

   ^~~

   PIND

Flatbox:199:27: error: 'node' was not declared in this scope

   HID().AppendDescriptor(&node);

                           ^~~~

Flatbox.ino:199:27: note: suggested alternative: 'tone'

   HID().AppendDescriptor(&node);

                           ^~~~

                           tone

exit status 1

'HID' was not declared in this scope

[Jacek Fedoryński]

Did you install the SparkFun Pro Micro board definition (addon) and select the Pro Micro as the board in the "Tools" menu?

Here's a walkthrough from SparkFun:

https://learn.sparkfun.com/tutorials/pro-micro--fio-v3-hookup-guide#installing-windows

(Not sure if all the driver stuff is necessary as I'm not using Windows for this. But the addon in the Board Manager is definitely necessary.)