Hi,
As you use CW 7.2, you have a .mcp project file (binary).
I suggest you to do as follows :
- open your existing project (.mcp file)
- in the File menu, select export. This will create a project file .xml
- close CW
- edit this .xml file with a text editor (notepad for example) and change all 3.6 occurences to 3.8
- open CW and select import to import a project from the new .xml file
- then save the projet using another filename for this new .mcp file for MQX 3.8
At this step you have the old .mcp file for MQX 3.6 and the new one for MQX 3.8 and you should be OK.
Just make sure you build for the right target (debug, internal flash / external ram, ...)