Something is wrong with the path to the make utility.
Did you create this project, or is it one of the TivaWare examples? If it is your project, look how an existing TivaWare project is configured in the project Properties->Builder->Builder section
If it is a TivaWare project, or if it has the same path for make as the TivaWare path, something still did not get installed right. There should be a gmake.exe in ccsv5\utils\bin.