Unable to load project 'data' in weblogic workshop 8.1 SP5

Hi all, I am a beginner to Weblogic. I am facing issues while loading the application into weblogic workshop IDE. There is a project named 'data' defined in the .work file. it puts a pop up saying 'Unable to load project 'data'. Project type 'urn:com-bea-ide:project.type: Datasync' not recognized. Would you like to permanently remove this project from the application? but,All the other projects and modules are getting loaded successfully.I am also able to build the weblogic application using Ant. Can somebody help me out in understanding and fixing this problem? I appreciate all your help. Thanks for your time and help