there is a new problem by using the CCS 5.2. If i exclude a file or folder to build and want it back later, this folder is not compiled anymore. There are no lines in the makefile and hence no object files generated. I cleaned and refreshed the project but still the same error message: "gmake: *** No rule to make target". I'm rewriting a big project and need to exclude from time to time specific folders. But with this bug it's impossible to work that way.