dynamic C 8.2

Dear all,

          I'm just a newbie to DC and just doing program maintenance. Now I have to do some modifications one project created in DC8.2. My problem is that I cannot use DC 8.2.

Error:
While Sending Cold Loader:
could not open serial port.

However, when I go and debug in DC8.01, I can.

Can anybody kindly suggest me anything may affects my program or not? What are the differnces between DC8.2 and DC 8.01?

Regards,
Mizu

It looks like another application has that serial port open.
Or you have 2 sessions of Dynamic C open using the same serial port.
Also, do not port over projrct files from a previous version, instead create a new project file.