[ncl-install] Plotgrids error

[Kevin Hallock]

Hi Jean,

This is a common issue experienced when installing NCL using “apt-get” on Ubuntu. The package maintainers for Ubuntu chose to split certain files that we normally put in “$NCARG_ROOT/lib/ncarg” (“/usr/lib/ncarg” in your case) into their own directory “/usr/share/ncarg”. You can configure NCL to use this directory with “export NCARG_NCARG=/usr/share/ncarg”, although it looks like the script you are running explicitly references “$NCARG_ROOT/lib/ncarg” which would need to be changed. You can read about the various NCARG_* environment variables here: https://www.ncl.ucar.edu/Document/Language/env.shtml <https://www.ncl.ucar.edu/Document/Language/env.shtml>

To avoid some of these complications, you may want to consider installing a binary release of NCL from our website: http://ncl.ucar.edu/Download/ <http://ncl.ucar.edu/Download/>

Alternatively, if you’re familiar with Anaconda/“conda”, you could install NCL using the “conda” package manager: http://ncl.ucar.edu/Download/conda.shtml <http://ncl.ucar.edu/Download/conda.shtml>

Also, the version of NCL provided by the Ubuntu package manager is 6.3.0, while NCL 6.4.0 was released 4 months ago (and is available via either of the installation methods listed above). This might not matter to you if you’re just experimenting with NCL, but I thought I’d let you know in case you would prefer to use the newest version.

I hope this helps,
Kevin

> On Jul 5, 2017, at 4:19 PM, Jean P Valle Rodriguez <jean.valle at upr.edu> wrote:
> 
> I am currently working the tutorial of WRF and the first step is the plotgrids part. Wen I run it the following error appears:
> 
> fatal:Could not open($NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl)
> fatal:error at line 7 in file util/plotgrids.ncl
> 
> I have seen some possible solutions and edited the environment (in bashrc) to:
> export NCARG_ROOT=/usr
> export PATH=$NCARG_ROOT/bin:$PATH
> 
> I am using Ubuntu 16.04 and NCL 6.3, using the command "which ncl" shows :
> /usr/bin/ncl
> 
> Any help that can be provided will be appreciated. 
> Thanks for your help!
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