PlantUML doesnt work in Confluence due to error : dot/GraphViz has crashed

0 votes
asked Aug 6 in Question / help by jampow
I'd like to do preview indication of a uml file in plantuml in visualstudiocode, but this error is indicated.

please help me !!

Diagram size: 124lines /3538 characters.
For some reason, dot/GraphViz has crached.
This has been generated with PlantUML (1.2020.10).
Java Runtime: Java(TM) SE Runtime Environment
JVM: Java HotSpot(TM) Client VM
Java Version: 1.8.0_241-b07
Operating System: Windows10
Default Encoding: MS932
Language: ja
Country: JP
Machine] DESKTOP-6A8132M
Processors: 8
Thread Active Count: 1
commented Aug 6 by albert (2,900 points)
What happens when you try to display your graph in the plantuml web server (

Would be useful to have the input data you want to display.

I see that your language is Japanese, maybe plantuml should be invoked like:

java -Dfile.encoding=UTF-8 -jar plantuml.jar -metadata -charset UTF-8 ...
commented Aug 7 by jampow

Thank you for your comment Albert!

The Plantuml web server displayed a diagram of the domain model we wanted to display.

It seems that UTF-8 is affecting it. i'll try it.

commented Aug 8 by Martin
It probably isn't this easy, but in case it is: when I installed Graphviz on Windows it wouldn't work until I had run "dot -c" as administrator.  This did some kind of one-time setup on Graphviz.
commented Aug 8 by albert (2,900 points)
@Martin What is the relevance of your comment in respect to the question? (I don't see it).
commented Aug 8 by jampow
Thank you for your comment Martin

Your solution solved the problem!!

I started the command prompt as admin and ran the "dot -c" command.
commented Aug 8 by jampow
Thanks to albert and Martin for their comments.

1 Answer

0 votes
answered Aug 8 by Martin
edited Aug 8

Glad to be of help!  For the purposes of completion, I'll turn my comment into an answer:

After installing Graphviz 2.44.1 for the first time on Windows, you need to run "dot -c" as administrator to complete a one-off set up.

Before this is done, if you run 'dot' at the CMD prompt, you'll get:

> dot

There is no layout engine support for "dot"
Perhaps "dot -c" needs to be run (with installer's privileges) to register the plugins?

(Which is what gave me the solution.)  Running "dot -c" as administrator, creates the file C:\Program Files\Graphviz 2.44.1\bin\config6 and you're good from then on.  (You can recreate the situation by deleting this file, which is how I reproduced the error text above).

@plantuml - it might be worth catching this particular GraphViz error and displaying a more helpful error message.