Error using coder.onec​lick.Targe​tHook/extM​odeConnect (line 178) Error occurred while executing External Mode MEX-file 'ext_comm': ExtSetTargetPkt() call failed for ExtSendGenericPkt(). Ensure target is still running Error in coder.oneclick.CoderTar

I am doing SCI communication and while debuging code into hardware get successfully debug and then get automatically abort. It gives me this error:

Error using coder.oneclick.TargetHook/extModeConnect (line 178)

Error occurred while executing External Mode MEX-file 'ext_comm':

ExtSetTargetPkt() call failed for ExtSendGenericPkt().

Ensure target is still running

Error in coder.oneclick.CoderTargetHook/extModeConnect

Error in on_target_one_click

Error in sl (line 15)

[varargout{1:nargout}]=feval(varargin{:});

please help me.