Your message seems to be truncated. Does that mean that the .svg outoput file was created, but is empty?

I have two other suggestions.

You could try putting a space after the -o and before the file name.

Also, you could try:

ldd /usr/local/bin/dot

to see if all needed libraries are available.

All the best,
David Mitchell
On 7/3/2019 15:51, Ulrich Vollert wrote:
The svg file contains



Am 03.07.2019 um 21:28 schrieb David Mitchell <davidmitch...@att.net>:

Hi Ulrich,

Could you please try copying and pasting the value of spawn_arg_base_ to a 
console window and running it?  You may get more interesting error messages.

Thanks,
David Mitchell

On 7/3/2019 15:08, Ulrich Vollert wrote:
graphview 'digraph G { a->b }',LF
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