2018-01-30 3:18 AM
No target connected ?
2018-01-30 4:33 AM
Details, please.
2018-01-30 4:49 AM
Check debugger settings, use SWD mode, connect under reset, ST-LINK selected.
Use ST-LINK Utilities, confirm functionality.
Strap BOOT0 high, and see if it connects in that case.
2018-01-30 4:57 AM
Well documented here: