Mbed Studio can't debug

I use NUCLEO-F767ZI, can complie ,build . but mbed studio prompt "the detected device ‘usb composite device’ does not support debugging.Debug functionality has been disabled "
how to solve this problem?


%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20190331132124 %E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20190331132138

Same question, I tried it with the F767ZI, with the L432KC, and I did with the K64F and every board gave me the same issue.

I have the same issue with my F767ZI… it is possible that this board is not yet fully supported, as I was not able to find it on the supported boards list:

edit: I have updated the STLink firmware of the board and it is still not working :frowning:
Hopefully they will fix this issue…

I have the same problem with NUCLEO-L152RE, How did you solve the problem please.