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Verifying Plugin Installation

If GAMA does not recognize type: unity or the Unity-specific operators (like prefab_aspect), the plugin may not be installed correctly.

1. Check the IDE Menu​

After a successful installation and restart, a UnityVR menu should appear in the GAMA top menu bar.

2. Check GAML Syntax Highlighting​

In a .gaml file, type unity_property. If the plugin is active, the IDE should recognize this as a valid type and provide autocompletion.

3. Check Installed Plugins List​

  1. Go to Help → About GAMA.
  2. Click on the Installation Details button.
  3. Search for SIMPLE Unity plugin in the list.

If any of these checks fail, refer back to the GAMA Installation guide to re-install the plugin from the update site.

GAMA version requirement​

The SIMPLE plugin requires GAMA 2025-06 or later. On older releases, the update site may install without errors but the plugin will fail to activate because its internal dependencies are not satisfied.

Check your GAMA version at Help → About GAMA. If it is older than 2025-06, update GAMA first.

Update site unreachable (no internet / corporate proxy)​

If the P2 update site (https://project-simple.github.io/simple.toolchain/) is unreachable, download the site ZIP from the simple.toolchain GitHub Releases and use it as a local update site:

  1. Download the ZIP asset (named something like simple.toolchain-site-X.Y.Z.zip).
  2. In GAMA, go to Support → Install new plugins....
  3. Click Work with and enter the path to the extracted ZIP: 
    jar:file:/path/to/simple.toolchain-site-X.Y.Z.zip!/
  4. Select SIMPLE Unity plugin and proceed with the install.