Hi!
When using Graphab, we encountered the following problem: "An error has occurred: java.lang.RuntimeException: java.lang.IllegalStateException: Negative or null cost is forbidden. Check your cost." We carefully checked the cost data, ensuring there were no negative values. We also made multiple attempts with the cost data, including converting Nodata values to 0, converting them to unsigned integers, and so on. However, the above - mentioned error still exists. We previously used Graphab version 2.8.5, and later used version 2.8.8, but the problem still persists. Could you help us identify where the problem lies? Thank you！
