[GraphViz Services] GraphViz
Forge component by OutSystems R&D
More info at
- Official Graphviz - Graph Visualization Software website 
- GraphViz on wikipedia 


Hi all,

To use this component in OutSystems platform running on the Java stack you need to install version 2.26.0 of the Graphviz package on your server.

Unfortunately, we found that our component has some problems with the most recent versions of the Graphviz package. For that reason, you should ensure that you have the version 2.26.0 installed, otherwise, the GraphViz Services may not work as expected.

If you're using 'yum' to update your packages you can also lock the Graphviz version so it will not be updated if you run the yum update command. Follows an example of how to do it.

// Remove all graphviz packages
yum remove graphviz*            
// Get and install graphviz 2.26.0-10.el6 and dependencies
wget https://www.graphviz.org/pub/graphviz/stable/redhat/el6/x86_64/os/graphviz-2.26.3-1.el6.x86_64.rpm
wget https://www.graphviz.org/pub/graphviz/stable/redhat/el6/x86_64/os/graphviz-gd-2.26.3-1.el6.x86_64.rpm
yum install graphviz-2.26.3-1.el6.x86_64.rpm
yum install graphviz-gd-2.26.3-1.el6.x86_64.rpm
// Install yum versionlock plugin 
yum install yum-plugin-versionlock
// Lock graphviz version 
yum versionlock graphviz

Sorry for any inconvenience.

Remember that this problem only occurs on the Java stack. If you're running the OutSystems platform on the .Net stack you can ignore this post.

Miguel Rebelo

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