ladyada
commented
2 years ago since webusb isnt a real library you have to install it manually and there's no dependancy manager for arduino sketches (whee!)
instructions are updated here https://learn.adafruit.com/circuit-playground-firmata/firmata-sketch please check em out and close if that works!
epeach
This change (https://github.com/adafruit/CircuitPlaygroundFirmata/pull/9) introduced a WebUSB.h dependency for the Circuit Playground Classic boards. The WebUSB library needs to be manually added to Arduino IDE (https://github.com/webusb/arduino#getting-started). A teacher following the instructions at (https://learn.adafruit.com/circuit-playground-firmata/firmata-sketch) reported to Code.org that they were getting stuck flashing the firmware to their boards with the following error:
Our knowledge of sketch files is limited - is there a way to bundle this dependency with the *.ino file? If not, we propose adding additional instructions to (https://learn.adafruit.com/circuit-playground-firmata/firmata-sketch) that cover how to manually add the WebUSB library to the Arduino IDE.
CC-ing @aaronwaggener and @KylieModen for visibility.