After paying special attention to the details of the project you are trying to debug, are you trying to debug the release project?
If you are, you won't be able to debug and run that project as there are a lot of optimization and some debug capabilities are disabled when using that.
Also, could you please try erasing the .launch file and retry using the debug one ?
Yes, I am trying to debug the release project.
The above issue is resolved since I was using two different J Link debugger after changing the debugger's serial number in the IDE the issue is resolved.
Thanks for your support!