Hi thank you for your post.
You are misreading the error message, the message is saying you are using TC08 driver V2.6, and it is saying it cannot find the TC-08.
From what I can gather, you are using a serial port TC08, have you installed the drivers for the serial TC-08 or have you installed it for the USB device?
Secondly if you have installed the drivers for the serial device, have you selected the corresponding COM port?
Let me know if this helps.