What IDE are you using?If keil, you can refer to the following method.
Solution: You will 'MDK4.7 before you install the version of D： \ Keil (I installed in the D plate) TOOLS. INI, copy the file to 'D: \ Keil_v5' directory below, and then reboot your PC will find all these things, but there will be another problem, is the Keil certification for piracy, the previous method is used to replace 'D: \ Keil_v5 \ ARM \ Segger' inside 'JLinkARM DLL' and 'JL2CM3. DLL' also is unable to solve,Therefore, to re-brush the firmware 'V8-4.24f.rar' in the online method (which must be brushed), I will not repeat it in many ways.Your keil5 will be fully usable after you brush the firmware, and you can use keil5's auto-complete feature.
Note: the previous version of 'V4.70' can directly cover the 'j-link V4.70 qian. Rar' in the attachment to 'D:\ keil \ARM\Segger' in the 'keil' directory, which can perfectly solve the problem of the authentication of the flash back.
The method comes from the network.