error in code composer**** Build of configuration Debug for project DT_19_1_1 ****

Could you provide additional details like which exact version of CCS you are using, which project you are trying to build (is it a TI example or your own project)?

There is a thread here with a similar error that might offer some ideas. If it does not help, could you zip up and attach your project here so we can reproduce the issue and take a closer look at the makefiles?