Hi, I just ran into this problem. My first time with tabular. The solution as dboneill181 says is simply to drop the destination SSAS cube database and then redeploy. Works fine. This is a well known problem with many versions of SSAS multi-dimensional where some corruption occurs in the project files which apparently cause this problem. I've encountered it many, many times throughout the years. It is transient and I don't expect Microsoft to admit it or fix it (unless some other fix by accident remedies it).