<div dir="ltr"><div>Hi, <br></div><div>I'm having trouble getting the r.mblend extension to work. I'm currently using GRASS v8.2.1 on linux (I'm running on Arch linux). When I run r.mblend with the following command: <br></div><div>-------------------------------------------------------------------------------------------------------------------------------</div><div><span style="font-family:monospace">r.mblend --verbose high=1m_DEM low=5m_DEM output=merged_DEM inter_points=80</span></div><div>--------------------------------------------------------------------------------------------------------------------------------</div><div><br></div><div>It exits with the following error output:</div><div><br></div><div>-------------------------------------------------------------------------------------------------------------------------------</div><div><span style="font-family:monospace">[r.mblend] Interpolating smoothing surface. This might take a while...<br>Traceback (most recent call last):<br>  File "/home/ryan/.grass8/addons/scripts/r.mblend", line 332, in <module><br>    main()<br>  File "/home/ryan/.grass8/addons/scripts/r.mblend", line 302, in main<br>    gscript.run_command(<br>  File "/opt/grass/etc/python/grass/script/core.py", line 541, in run_command<br>    return handle_errors(returncode, result=None, args=args, kwargs=kwargs)<br>  File "/opt/grass/etc/python/grass/script/core.py", line 429, in handle_errors<br>    raise CalledModuleError(module=module, code=code, returncode=returncode)<br>grass.exceptions.CalledModuleError: Module run `v.surf.idw input=tmp_2803617 column=value output=tmp_2803618 power=2 npoints=80` ended with an error.<br>The subprocess ended with a non-zero return code: -9. See errors above the traceback or in the error output.<br>WARNING: No data base element files found<br>WARNING: No data base element files found<br>WARNING: No data base element files found<br>WARNING: No data base element files found<br>WARNING: No data base element files found<br>WARNING: Table <tmp_2803611> linked to vector map <tmp_2803611> does not<br>         exist</span><br></div><div>-------------------------------------------------------------------------------------------------------------------------------</div><div><br></div><div>The output of '<a href="http://r.info">r.info</a> 1m_DEM' is:</div><div><span style="font-family:monospace">+----------------------------------------------------------------------------+<br> | Map:      1m_DEM                         Date: Sat Apr 29 06:51:13 2023    |<br> | Mapset:   PERMANENT                      Login of Creator: ryan            |<br> | Location: golspie                                                          |<br> | DataBase: /mnt/sdb2/grassdata                                              |<br> | Title:                                                                     |<br> | Timestamp: none                                                            |<br> |----------------------------------------------------------------------------|<br> |                                                                            |<br> |   Type of Map:  raster               Number of Categories: 395             |<br> |   Data Type:    FCELL                Semantic label: (none)                |<br> |   Rows:         10000                                                      |<br> |   Columns:      15000                                                      |<br> |   Total Cells:  150000000                                                  |<br> |        Projection: OSGB36 / British National Grid                          |<br> |            N:     910000    S:     900000   Res:     1                     |<br> |            E:     295000    W:     280000   Res:     1                     |<br> |   Range of data:    min = -3.34  max = 394.81                              |<br> |                                                                            |<br> |   Data Description:                                                        |<br> |    generated by r.in.gdal                                                  |<br> |                                                                            |<br> |   Comments:                                                                |<br> |    r.in.gdal --overwrite -e -a input="Golspie_Brora_1m_DEM.tif" output=\   |<br> |    "1m_DEM" memory=300 offset=0 num_digits=0                               |<br> |                                                                            |<br> +----------------------------------------------------------------------------+</span></div><div><span style="font-family:monospace"><br></span></div><div><font face="arial,sans-serif">The output of '<a href="http://r.info">r.info</a> 5m_DEM' is:</font></div><div><font face="arial,sans-serif"><br></font></div><div><span style="font-family:monospace"> +----------------------------------------------------------------------------+<br> | Map:      5m_DEM                         Date: Sat Apr 29 06:51:48 2023    |<br> | Mapset:   PERMANENT                      Login of Creator: ryan            |<br> | Location: golspie                                                          |<br> | DataBase: /mnt/sdb2/grassdata                                              |<br> | Title:                                                                     |<br> | Timestamp: none                                                            |<br> |----------------------------------------------------------------------------|<br> |                                                                            |<br> |   Type of Map:  raster               Number of Categories: 0               |<br> |   Data Type:    FCELL                Semantic label: (none)                |<br> |   Rows:         11000                                                      |<br> |   Columns:      13000                                                      |<br> |   Total Cells:  143000000                                                  |<br> |        Projection: OSGB36 / British National Grid                          |<br> |            N:     940000    S:     885000   Res:     5                     |<br> |            E:     300000    W:     235000   Res:     5                     |<br> |   Range of data:    min = -1.49  max = 960.91                              |<br> |                                                                            |<br> |   Data Description:                                                        |<br> |    generated by r.in.gdal                                                  |<br> |                                                                            |<br> |   Comments:                                                                |<br> |    r.in.gdal --overwrite -e -a input="Golspie_Brora_OS_5m_DEM.tif" outp\   |<br> |    ut="5m_DEM" memory=300 offset=0 num_digits=0                            |<br> |                                                                            |<br> +----------------------------------------------------------------------------+</span></div><div><span style="font-family:monospace"><br></span></div><div><font face="arial,sans-serif">I've already tried to reinstall r.mblend using g.extensions to no avail.</font></div><div><font face="arial,sans-serif"><br></font></div><div><font face="arial,sans-serif">Thanks in advance for any help!</font></div><div><font face="arial,sans-serif"><br></font></div><div><font face="arial,sans-serif">Cheers,</font></div><div><font face="arial,sans-serif">Ryan<br></font></div></div>