# Water yield key error **URL:** \ **Category:** Software Support\ **Tags:** annual-water-yield\ **Created:** [May 2, 2022, 12:58am UTC](https://community.naturalcapitalalliance.org/t/water-yield-key-error/2757 "2022-05-02T00:58:31Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![yajiaoban](https://avatars.discourse-cdn.com/v4/letter/y/58956e/32.png) [@yajiaoban](https://community.naturalcapitalalliance.org/u/yajiaoban)\ **Post date:** [May 2, 2022, 12:58am UTC](https://community.naturalcapitalalliance.org/t/water-yield-key-error/2757/1 "2022-05-02T00:58:31Z")
Hi,everyone, I’ve met a problem about the Water Yield Model, about the value error as follows, biophysical\_table\_path C:/Users/huang/Desktop/Graduation/materials and data/InVEST\_tgr/water\_yield/biophysical table.csv depth\_to\_root\_rest\_layer\_path C:/Users/huang/Desktop/Graduation/materials and data/InVEST\_tgr/water\_yield/root.tif do\_scarcity\_and\_valuation False eto\_path C:/Users/huang/Desktop/Graduation/materials and data/InVEST\_tgr/water\_yield/ETO.tif lulc\_path C:/Users/huang/Desktop/Graduation/materials and data/InVEST\_tgr/water\_yield/landuse.tif n\_workers -1 pawc\_path C:/Users/huang/Desktop/Graduation/materials and data/InVEST\_tgr/water\_yield/pawc.tif precipitation\_path C:/Users/huang/Desktop/Graduation/materials and data/InVEST\_tgr/water\_yield/rain.tif results\_suffix 2020 seasonality\_constant 15 sub\_watersheds\_path C:/Users/huang/Desktop/Graduation/materials and data/InVEST\_tgr/water\_yield/shp/subwatershed.shp watersheds\_path C:/Users/huang/Desktop/Graduation/materials and data/InVEST\_tgr/water\_yield/shp/watershed.shp workspace\_dir C:\Users\huang\Desktop\Graduation\materials and data\InVEST\_tgr\water\_output 2022-05-01 20:34:32,190 hydropower\_water\_yield.execute(101) INFO Validating arguments 2022-05-01 20:34:32,237 validation.\_wrapped\_validate\_func(148) DEBUG Validation warnings: [] 2022-05-01 20:34:32,269 geoprocessing.align\_and\_resize\_raster\_stack(729) INFO n\_workers \> 1 (2) so starting a processes pool. 2022-05-01 20:34:42,832 geoprocessing.align\_and\_resize\_raster\_stack(779) INFO 1 of 5 aligned: eto\_2020.tif 2022-05-01 20:34:47,096 geoprocessing.align\_and\_resize\_raster\_stack(779) INFO 2 of 5 aligned: precip\_2020.tif 2022-05-01 20:34:55,456 geoprocessing.align\_and\_resize\_raster\_stack(779) INFO 3 of 5 aligned: depth\_to\_root\_rest\_layer\_2020.tif 2022-05-01 20:35:04,342 geoprocessing.align\_and\_resize\_raster\_stack(779) INFO 4 of 5 aligned: pawc\_2020.tif 2022-05-01 20:35:07,857 geoprocessing.align\_and\_resize\_raster\_stack(779) INFO 5 of 5 aligned: clipped\_lulc\_2020.tif 2022-05-01 20:35:07,982 geoprocessing.align\_and\_resize\_raster\_stack(788) INFO aligned all 5 rasters. 2022-05-01 20:35:08,170 utils.build\_lookup\_from\_csv(471) WARNING Encountered an entirely blank row on line 10 2022-05-01 20:35:08,184 utils.build\_lookup\_from\_csv(471) WARNING Encountered an entirely blank row on line 11 2022-05-01 20:35:08,184 utils.build\_lookup\_from\_csv(471) WARNING Encountered an entirely blank row on line 12 2022-05-01 20:35:08,184 hydropower\_water\_yield.execute(236) DEBUG bio\_lucodes set([’’, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 0.0]) 2022-05-01 20:35:08,184 hydropower\_water\_yield.\_check\_missing\_lucodes(724) INFO Checking that input tables have landcover codes for every value in the landcover map. 2022-05-01 20:35:11,388 hydropower\_water\_yield.execute(278) INFO Reclassifying temp\_Kc raster 2022-05-01 20:35:11,404 Task.add\_task(636) ERROR Something went wrong when adding task create\_Kc\_raster (2), terminating taskgraph. Traceback (most recent call last): File “Z:\opt\atlassian\pipelines\agent\build\env\lib\site-packages\taskgraph\Task.py”, line 602, in add\_task File “Z:\opt\atlassian\pipelines\agent\build\env\lib\site-packages\taskgraph\Task.py”, line 1068, in \_call File “Z:\opt\atlassian\pipelines\agent\build\env\lib\site-packages\pygeoprocessing\geoprocessing.py”, line 1747, in reclassify\_raster KeyError: ‘0.0’ 2022-05-01 20:35:11,404 model.\_logged\_target(1640) ERROR Exception while executing \ Traceback (most recent call last): File “Z:\opt\atlassian\pipelines\agent\build\env\lib\site-packages\natcap\invest\ui\model.py”, line 1637, in \_logged\_target File “Z:\opt\atlassian\pipelines\agent\build\env\lib\site-packages\natcap\invest\hydropower\hydropower\_water\_yield.py”, line 287, in execute File “Z:\opt\atlassian\pipelines\agent\build\env\lib\site-packages\taskgraph\Task.py”, line 602, in add\_task File “Z:\opt\atlassian\pipelines\agent\build\env\lib\site-packages\taskgraph\Task.py”, line 1068, in \_call File “Z:\opt\atlassian\pipelines\agent\build\env\lib\site-packages\pygeoprocessing\geoprocessing.py”, line 1747, in reclassify\_raster KeyError: ‘0.0’ 2022-05-01 20:35:11,404 model.\_logged\_target(1643) INFO Execution finished 2022-05-01 20:35:11,404 utils.prepare\_workspace(115) INFO Elapsed time: 39.21s If someone can solve the problem, I will be very grateful for that, thanks. The error details file is also attached. [InVEST-Hydropower-Water-Yield-log-2022-05-01–20\_34\_32.txt](https://community.naturalcapitalalliance.org/uploads/short-url/5iaaXGPrBgyjk9lY6ZnHTGUgnRh.txt) (4.7 KB) ---
**Author:** ![dcdenu4](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.naturalcapitalalliance.org/dcdenu4/32/544_2.png) [@dcdenu4](https://community.naturalcapitalalliance.org/u/dcdenu4)\ **Post date:** [May 2, 2022, 1:02pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-key-error/2757/2 "2022-05-02T13:02:50Z")
Hi @yajiaoban, Thanks for including your log file with the post. The `KeyError: 0.0` means that either the LULC input raster or the associated biophysical table do not recognize 0.0. Does your LULC raster have 0.0 values and does your table have a row to handle them? Sometimes we see this when the LULC rasters `nodata` value is not set. I also see you’re using a development version of InVEST 3.6.0. We would strongly recommend updating to the latest version of [InVEST 3.10.2](https://naturalcapitalproject.stanford.edu/software/invest). Many bugfixes and updates have been made across the software. Best, Doug ---
**Author:** ![yajiaoban](https://avatars.discourse-cdn.com/v4/letter/y/58956e/32.png) [@yajiaoban](https://community.naturalcapitalalliance.org/u/yajiaoban)\ **Post date:** [May 2, 2022, 5:17pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-key-error/2757/3 "2022-05-02T17:17:58Z")
Thanks, Doug, the problem has been resolved, thanks very much. dcdenu4 via Natural Capital Project Online Community \<[notifications@naturalcapitalproject.discoursemail.com](mailto:notifications@naturalcapitalproject.discoursemail.com)\> 于2022年5月2日周一 09:12写道： ---
**Author:** ![yajiaoban](https://avatars.discourse-cdn.com/v4/letter/y/58956e/32.png) [@yajiaoban](https://community.naturalcapitalalliance.org/u/yajiaoban)\ **Post date:** [May 2, 2022, 10:41pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-key-error/2757/4 "2022-05-02T22:41:43Z")
Sorry, I have another question, that is, does the input of raster images with different resolutions have any effect on the final result of the model, and is it necessary to standardize the resolution before data input? thanks， jin huang \<[huangjinjin0210@gmail.com](mailto:huangjinjin0210@gmail.com)\> 于2022年5月2日周一 13:17写道： ---
**Author:** ![dave](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.naturalcapitalalliance.org/dave/32/70_2.png) [@dave](https://community.naturalcapitalalliance.org/u/dave)\ **Post date:** [May 3, 2022, 12:52pm UTC](https://community.naturalcapitalalliance.org/t/water-yield-key-error/2757/5 "2022-05-03T12:52:01Z")
> [@yajiaoban](#): > > does the input of raster images with different resolutions have any effect on the final result of the model, and is it necessary to standardize the resolution before data input? Good question, the model standardizes and aligns all of the raster inputs for you, using the LULC raster input as the basis for the resolution, and a “nearest neighbor” resampling method. If you wish to have more control over the resampling methods used, you could certainly do this step yourself beforehand.