# Failed to generate image: dot failed: Format: "png" not recognized

**URL:** <https://forum.graphviz.org/t/failed-to-generate-image-dot-failed-format-png-not-recognized/2334>\
**Category:** Help\
**Created:** [July 12, 2024, 9:18pm UTC](https://forum.graphviz.org/t/failed-to-generate-image-dot-failed-format-png-not-recognized/2334 "2024-07-12T21:18:36Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![a7323764](https://avatars.discourse-cdn.com/v4/letter/a/839c29/32.png) [@a7323764](https://forum.graphviz.org/u/a7323764)\
**Post date:** [July 12, 2024, 9:18pm UTC](https://forum.graphviz.org/t/failed-to-generate-image-dot-failed-format-png-not-recognized/2334/1 "2024-07-12T21:18:36Z")

</div>

I am on Mac OS. I am writing a document using AsciiDoc. Within the document I have code like this:

```auto
["graphviz"]
----
digraph G {
  graph [splines=line];
...

```

I installed graphviz 12.0.0 from source as described in [Source Code | Graphviz](https://graphviz.org/download/source/)

```auto
./configure
make
make install

```

When I try to “build” my asciidoc I get this error:

```auto
asciidoctor: ERROR: xxx.adoc: line 195: Failed to generate image: dot failed: Format: "png" not recognized. Use one of: canon cmap cmapx cmapx_np dot dot_json eps fig gv imap imap_np ismap json json0 pic plain plain-ext pov ps ps2 svg svg_inline svgz tk xdot xdot1.2 xdot1.4 xdot_json

```

same error happens when I run `dot -Tpng`:

```auto
graphviz-12.0.0 ❯ dot -Tpng ⏎
Format: "png" not recognized. Use one of: canon cmap cmapx cmapx_np dot dot_json eps fig gv imap imap_np ismap json json0 pic plain plain-ext pov ps ps2 svg svg_inline svgz tk xdot xdot1.2 xdot1.4 xdot_json

```

How can I fix this? A copy of my config file is [here](https://gist.github.com/siddhsql/e65b998f57cf4a612f8333a7ebcdf38a)