upload to circuit playground express not working

I am trying to upload the blink example to a Adafruit Circuit Playground Express. The board and port seem to be recognized. When I start an upload, the board goes into bootload mode but never runs the sketch. Eventually, I get the error messages below.

Suggestions?

Arduino: 1.8.10 (Windows 10), Board: "Adafruit Circuit Playground"

Sketch uses 3868 bytes (13%) of program storage space. Maximum is 28672 bytes.
Global variables use 149 bytes of dynamic memory.

avrdude: butterfly_recv(): programmer is not responding
avrdude: butterfly_recv(): programmer is not responding
avrdude: butterfly_recv(): programmer is not responding
avrdude: butterfly_recv(): programmer is not responding
avrdude: butterfly_recv(): programmer is not responding
Found programmer: Id = "�"; type = �
Software Version = i.

you have Circuit Playground Express not Circuit Playground.
install the right boards package