# Graphviz, installed from source on a CentOS 7 server doesn't find format

**URL:** <https://forum.graphviz.org/t/graphviz-installed-from-source-on-a-centos-7-server-doesnt-find-format/691>\
**Category:** Help\
**Created:** [June 7, 2021, 1:08pm UTC](https://forum.graphviz.org/t/graphviz-installed-from-source-on-a-centos-7-server-doesnt-find-format/691 "2021-06-07T13:08:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tillmann](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/tillmann/32/379_2.png) [@tillmann](https://forum.graphviz.org/u/tillmann)\
**Post date:** [June 7, 2021, 1:08pm UTC](https://forum.graphviz.org/t/graphviz-installed-from-source-on-a-centos-7-server-doesnt-find-format/691/1 "2021-06-07T13:08:43Z")

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We installed the latest stable Graphviz version 2.47.2 from source on a CentOS 7 server but the execution of `dot` fails because the required format cannot be found:

I run  
`dot -Tsvg -O wfgrafic2329630565754222378.gv`

and receive  
`Format: "svg" not recognized. No formats found.`  
`Perhaps "dot -c" needs to be run (with installer's privileges) to register the plugins?`

(The problem is not particular to SVG, the result for JPEG is equivalent.)

We ran  
`dot -c`  
but to no noticeable effect.

What can have gone wrong?

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**Author:** ![smattr](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/smattr/32/85_2.png) [@smattr](https://forum.graphviz.org/u/smattr)\
**Post date:** [June 7, 2021, 3:01pm UTC](https://forum.graphviz.org/t/graphviz-installed-from-source-on-a-centos-7-server-doesnt-find-format/691/2 "2021-06-07T15:01:31Z")

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How did you build and install Graphviz? Specifically, did you install it to a custom prefix? And what was the output from `./configure` about what features were enabled/disabled?

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<div class="post-metadata">

**Author:** ![tillmann](https://sea2.discourse-cdn.com/graphviz/user_avatar/forum.graphviz.org/tillmann/32/379_2.png) [@tillmann](https://forum.graphviz.org/u/tillmann)\
**Post date:** [June 7, 2021, 3:18pm UTC](https://forum.graphviz.org/t/graphviz-installed-from-source-on-a-centos-7-server-doesnt-find-format/691/3 "2021-06-07T15:18:14Z")

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Thank you for your response, smattr,

our admin solved it just a few minutes ago by installing a number of libraries that must have been missing, like “librsvg2” and “libexpat-devel” - it works fine now.

Regards,  
Tillmann