[GRASS-user] Error in v.distance when running from R (in a container)

[Mehrdad Varedi]

Hi Everyone,
I can run the R program with no problem from a Shiny app I have in Rstudio.
Although when running the program from a container, I receive an error when
running the v.distance and program halts.

here is the error dump I receive, not so much informative, although I
appreciate to know if you have ever seen such an issue: (FYI many other
grass functions are executed before this error happens)

Warning: Error in execGRASS: The command:
v.distance --overwrite --verbose from=WM_End from_layer=1 from_type=point
to=WM_start to_layer=1 to_type=point dmax=0.5 dmin=-1 upload=to_attr
column=LinkedWMID to_column=WMAINID separator=tab
produced an error (1) during execution:
Finds the nearest element in vector map 'to' for elements in vector map
'from'.

Usage:
 v.distance [-pas] from=name [from_layer=string]
   [from_type=string[,string,...]] to=name [to_layer=string]
   [to_type=string[,string,...]] [output=name] [dmax=value] [dmin=value]
   upload=string[,string,...] [column=name[,name,...]] [to_column=name]
   [table=name] [separator=character] [--overwrite] [--help] [--verbose]
   [--quiet] [--ui]

Flags:
  -p   Print output to stdout, don't update attribute table
  -a   Calculate distances to all features within the threshold
  -s   Print output as square matrix (only possible for one single upload
variable)

Parameters:
        from   Name of existing vector map (from)
  from_layer   Laye [... truncated]
  80: stop
  79: execGRASS
  78: MarkTheEnds
  77: GetBaseNetworkNTransform

Thanks and Kind regards,

Mehrdad


Mehrdad Varedi, M.A.Sc.
Waterlix <http://www.waterlix.com> Inc. Founder
www.waterlix.com
Cell: +1 (519)722-7057
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