Keil - the "trace HW not present" appears during download debugging

Use st-link Debugging cannot enter the debugging state after burning is completed , Tips TRACE HW not present, Click on the confirmation , Prompt error ：Erron ： target DLL has been cancelled . Debugger aborted

 

terms of settlement ：

First step ：

The second step ：

 

  The third step ：

 

  The third step ：

  Step four ： Click on Trace, Uncheck Enable