Can not view of plugin:graphviz in dokuwiki

[ljz0721cx]

I use plugin:graphviz in dokuwiki,
code :

<graphviz>
 graph G1 {
    aaa -- bbb;
    bbb -- c;
    aaa -- c;
}
</graphviz>

show image like this

please help! why show like this??

[ljz0721cx]

dukowiki graphviz plugin not working,please help;

[nblock]

Maybe: #19 (comment)

[NeatBoar]

After 2024 the problem has another reason and solution.

Graphviz render from Google by default (chart.apis.google.com). Google shut down the service since January 2024 (as I heard). I switch to local render.

dnf install graphviz
Then add dot path to graphviz config file (dokuwiki/lib/plugins/graphviz/conf/default.php):

<?php
$conf['path'] = '/bin/dot';