[ncl-talk] sub: Plot error

[dale zuri]

Hi,
When I run ncl code I get this error. I don't understand this error.
Please drop your suggestion.
Thank you,
DZ

 GKS ERROR NUMBER -208 ISSUED FROM SUBROUTINE GOPWK :
 --X driver error: DISPLAY environment variable not set
 GKS ERROR NUMBER   25 ISSUED FROM SUBROUTINE GESC  :
 --SPECIFIED WORKSTATION IS NOT OPEN
fatal:Workstation with PID#8 is not open
fatal:Unable to open Workstation-Can't Create
fatal:Unable to access object with id:-4
fatal:PID #-4 can't be found in NhlSetValues
(0)    Error: scalar_field: If the input data is 1-dimensional, you must
set sfXArray and sfYArray to 1-dimensional arrays of the same length.
warning:create: Bad HLU id passed to create, ignoring it
fatal:_NhlCreate:Invalid Parent id #-4
fatal:PID #-4 can't be found in NhlSetValues
fatal:_NhlCreate:Invalid Parent id #-4
fatal:PID #-4 can't be found in NhlSetValues
fatal:NhlGetValues:PID #-4 is invalid
fatal:["Execute.c":8575]:Execute: Error occurred at or near line 3575 in
file /Users/ncl/lib/ncarg/nclscripts/csm/gsn_csm.ncl

fatal:["Execute.c":8575]:Execute: Error occurred at or near line 5930 in
file /Users/ncl/lib/ncarg/nclscripts/csm/gsn_csm.ncl

fatal:["Execute.c":8575]:Execute: Error occurred at or near line 7107 in
file /Users/ncl/lib/ncarg/nclscripts/csm/gsn_csm.ncl
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