# SWY Error：overflow encountered in exp **URL:** \ **Category:** Software Support\ **Tags:** seasonal-water-yield\ **Created:** [January 7, 2021, 9:40am UTC](https://community.naturalcapitalalliance.org/t/swy-error-overflow-encountered-in-exp/1616 "2021-01-07T09:40:37Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![songxx](https://avatars.discourse-cdn.com/v4/letter/s/a3d4f5/32.png) [@songxx](https://community.naturalcapitalalliance.org/u/songxx)\ **Post date:** [January 7, 2021, 9:40am UTC](https://community.naturalcapitalalliance.org/t/swy-error-overflow-encountered-in-exp/1616/1 "2021-01-07T09:40:37Z")
Dear community, I am having problems with the seasonal Water Model.The model ran for three months and then reported the error “overflow encountered in exp”.I corrected the DEM data, but the model still reported the error. Looking forward for your help ![InVEST-Seasonal-Water-Yield-log-2021-01-07--17_22_28.txt|attachment](https://canada1.discourse-cdn.com/flex031/uploads/naturalcapitalproject/original/2X/f/fd1f152a532cf766481a7ffa12b8d78c0c9ab3da.txt) (539.7 KB) ---
**Author:** ![swolny](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.naturalcapitalalliance.org/swolny/32/181_2.png) [@swolny](https://community.naturalcapitalalliance.org/u/swolny)\ **Post date:** [January 7, 2021, 4:21pm UTC](https://community.naturalcapitalalliance.org/t/swy-error-overflow-encountered-in-exp/1616/2 "2021-01-07T16:21:45Z")
Hi @songxx - 3 months?!? You have a lot of patience! What is the resolution and extent of your DEM? It must be huge. It looks like the log file did not attach - would you please try posting it again? Thanks. ~ Stacie ---
**Author:** ![songxx](https://avatars.discourse-cdn.com/v4/letter/s/a3d4f5/32.png) [@songxx](https://community.naturalcapitalalliance.org/u/songxx)\ **Post date:** [January 8, 2021, 7:44am UTC](https://community.naturalcapitalalliance.org/t/swy-error-overflow-encountered-in-exp/1616/3 "2021-01-08T07:44:11Z")
Hi swolny Thanks for your reply！I am sorry for my grammar.I mean,the model output three months qucik flow and reported error. The extent of DEM is bigger than my AOI, cell cize is 1000\*1000. [InVEST-Seasonal-Water-Yield-log-2021-01-07–20\_23\_17.txt](https://community.naturalcapitalalliance.org/uploads/short-url/A1VwjdN6UEqTZqlJTs481nPZyfW.txt) (9.5 KB) ![image](https://canada1.discourse-cdn.com/flex031/uploads/naturalcapitalproject/original/2X/2/28e6856b5bb3c53d484fb86f1b5871948d25b79c.png) ![image](https://canada1.discourse-cdn.com/flex031/uploads/naturalcapitalproject/original/2X/d/d1a10fe9237ab0d05c0812325b7d936ccbf2d9b3.jpeg) ~Thanks again! ---
**Author:** ![jdouglass](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.naturalcapitalalliance.org/jdouglass/32/9_2.png) [@jdouglass](https://community.naturalcapitalalliance.org/u/jdouglass)\ **Post date:** [January 8, 2021, 8:04pm UTC](https://community.naturalcapitalalliance.org/t/swy-error-overflow-encountered-in-exp/1616/4 "2021-01-08T20:04:22Z")
Hi @songxx, I’m not immediately sure what’s going on here. Could you share your inputs with us so we can take a look? A file sharing service like dropbox or google drive usually work well for this. Thanks! James