MAXREFDES101_Source_Code: Error in USBAudio.h: no member named 'attach' in 'mbed::Callback<void ()>

Oh I should have seen this…I changed it now. But the former error (expected unqualified-id) in build_version.h still make problems. I already tried the SerialBase opinion too, but get the same error again.

Do you know another possible solution?

The BLE driver “BLE_ICARUS” does not seem to be compatible with Mbed OS 6. The compiler reports a lot of errors. For example:

Drivers/BLE_ICARUS/BLE_ICARUS.cpp:150: error:  error: 'ConnectionCallbackParams_t' in 'class ble::Gap' does not name a type
Drivers/BLE_ICARUS/BLE_ICARUS.cpp:154: error:  error: 'ConnectionParams_t' is not a member of 'ble::Gap'
Drivers/BLE_ICARUS/BLE_ICARUS.cpp:162: error:  error: no matching function for call to 'ble::Gap::stopAdvertising()'
...

I’m very sorry but I don’t think I can help you to solve this issue.

Thank you for trying to help me, maybe I am using the mbed os version which the code is coming with. Hopefully I have more luck with that to compile the program.
Have a nice day!