OpenCR Upload failed with Arduino-CLI

[Vinz1911]

Dear Robotis Team,

I tried out the Arduino-cli and wanted to compile and upload for my OpenCR Board. Compiling works without any issues but when I try to upload I got this issue:

Error during Upload: Property 'upload.tool.serial' is undefined

I found some issue which may be related to this. but I have no idea how to define the upload.tool.serial property for this board.

arduino/arduino-cli#1444

Maybe you can help me to get this work.

Thank you and best regards,
Vinz